computer is moving slow,choppy,video and audio also choppy

The problem started out of nowhere.I have windows xp and I noticed that my whole computer is been running kinda choppy.I noticed when I play audio files the audio is choppy and skipping words.same thing when I play videos,i can barely hear anything.
This problem just happened outta nowhere.my computer is also movin slower,but surprisingly my internet is still moving fast with no problem(i have a cable modem).
I scanned my computer with avg spybot and ad-aware.it found problems,got rid of them but Im still having the same problems with my computer.my mouse pointer is also moving very choppy
Does anybody have any idea whats wrong with my computer?Does anybody have any suggestions for me?

here is my hijackthis file:
Logfile of Trend Micro HijackThis v2.0.0 (BETA)
Scan saved at 12:27:20 AM, on 8/20/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
Boot mode: Normal

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\Program Files\Common Files\AOL\1134072362\ee\AOLSoftware.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\a-squared Free\a2service.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe
C:\WINDOWS\system32\keyhook.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Siber Systems\AI RoboForm\RoboTaskBarIcon.exe
C:\Program Files\Yahoo!\Search Protection\SearchProtection.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\WINDOWS\system32\pctspk.exe
C:\Program Files\Viewpoint\Common\ViewpointService.exe
C:\Program Files\Viewpoint\Viewpoint Manager\ViewMgr.exe
C:\Program Files\internet explorer\iexplore.exe
C:\Documents and Settings\Administrator\Desktop\HiJackThis_v2.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://us.rd.yahoo.com/customize/ie/defaults/su/msgr7/*http://www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://us.rd.yahoo.com/customize/ie/defaults/sb/msgr7/*http://www.yahoo.com/ext/search/search.html
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapps.yahoo.com/customize/ycomp/defaults/su/*http://www.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = \blank.htm
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = 12.165.136.119:8080
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn3\yt.dll
O1 - Hosts: 216.93.174.28 a.tribalfusion.com
O1 - Hosts: 207.44.240.65 rad.msn.com
O1 - Hosts: 216.93.174.28 view.atdmt.com
O1 - Hosts: 216.93.174.28 media.fastclick.net
O1 - Hosts: 216.93.174.28 ad.doubleclick.net
O1 - Hosts: 216.93.174.28 images.trafficmp.com
O1 - Hosts: 216.93.174.28 adfarm.mediaplex.com
O1 - Hosts: 216.93.174.28 media1.fastclick.net
O1 - Hosts: 216.93.174.28 media19.fastclick.net
O1 - Hosts: 216.93.174.28 media39.fastclick.net
O1 - Hosts: 216.93.174.28 count.exitexchange.com
O1 - Hosts: 216.93.174.28 leader.linkexchange.com
O1 - Hosts: 67.15.114.78 pagead2.googlesyndication.com
O1 - Hosts: 67.15.114.78 pagead.googlesyndication.com
O1 - Hosts: 216.93.174.28 ad.yieldmanager.com
O1 - Hosts: 67.15.114.78 ypn-js.overture.com
O1 - Hosts: 216.93.174.28 freeze.zedo.com
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn3\yt.dll
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: BitComet ClickCapture - {39F7E362-828A-4B5A-BCAF-5B79BFDFEA60} - C:\Program Files\BitComet\tools\BitCometBHO_1.1.7.4.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.6.0_02\bin\ssv.dll
O2 - BHO: Viewpoint Toolbar BHO - {A7327C09-B521-4EDB-8509-7D2660C9EC98} - C:\Program Files\Viewpoint\Viewpoint Toolbar\3.8.0\ViewBarBHO.dll
O2 - BHO: IEPlugin Class - {CF7C3CF0-4B15-11D1-ABED-709549C10000} - C:\Program Files\Advanced System Optimizer\IEHelper.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn3\yt.dll
O3 - Toolbar: Viewpoint Toolbar - {F8AD5AA5-D966-4667-9DAF-2561D68B2012} - C:\Program Files\Common Files\Viewpoint\Toolbar Runtime\3.8.0\IEViewBar.dll
O3 - Toolbar: &RoboForm - {724d43a0-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.dll
O4 - HKLM\..\Run: [SiSUSBRG] C:\WINDOWS\SiSUSBrg.exe
O4 - HKLM\..\Run: [RemoteControl] "C:\Program Files\CyberLink\PowerDVD\PDVDServ.exe"
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [HostManager] C:\Program Files\Common Files\AOL\1134072362\ee\AOLSoftware.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.6.0_02\bin\jusched.exe"
O4 - HKLM\..\Run: [SiS Windows KeyHook] C:\WINDOWS\system32\keyhook.exe
O4 - HKLM\..\Run: [NAVWatch] C:\NAVWatcher.exe
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [RoboForm] "C:\Program Files\Siber Systems\AI RoboForm\RoboTaskBarIcon.exe"
O4 - HKCU\..\Run: [YSearchProtection] C:\Program Files\Yahoo!\Search Protection\SearchProtection.exe
O4 - HKCU\..\Run: [Yahoo! Pager] "C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe" -quiet
O4 - HKCU\..\Run: [DAEMON Tools] "C:\Program Files\DAEMON Tools\daemon.exe" -lang 1033
O4 - HKCU\..\Run: [AdobeUpdater] C:\Program Files\Common Files\Adobe\Updater5\AdobeUpdater.exe
O4 - HKUS\S-1-5-19\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [AVG7_Run] C:\PROGRA~1\Grisoft\AVG7\avgw.exe /RUNONCE (User 'Default user')
O8 - Extra context menu item: &AOL Toolbar Search - c:\program files\aol\aol toolbar 3.1\resources\en-US\local\search.html
O8 - Extra context menu item: &D&ownload &with BitComet - res://C:\Program Files\BitComet\BitComet.exe/AddLink.htm
O8 - Extra context menu item: &D&ownload all video with BitComet - res://C:\Program Files\BitComet\BitComet.exe/AddVideo.htm
O8 - Extra context menu item: &D&ownload all with BitComet - res://C:\Program Files\BitComet\BitComet.exe/AddAllLink.htm
O8 - Extra context menu item: &Yahoo! Search - file:///C:\Program Files\Yahoo!\Common/ycsrch.htm
O8 - Extra context menu item: Crawler Search - tbr:iemenu
O8 - Extra context menu item: Customize Menu - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComCustomizeIEMenu.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O8 - Extra context menu item: Fill Forms - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.html
O8 - Extra context menu item: RoboForm Toolbar - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.html
O8 - Extra context menu item: Save Forms - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.html
O8 - Extra context menu item: Yahoo! &Dictionary - file:///C:\Program Files\Yahoo!\Common/ycdict.htm
O8 - Extra context menu item: Yahoo! &Maps - file:///C:\Program Files\Yahoo!\Common/ycmap.htm
O8 - Extra context menu item: Yahoo! &SMS - file:///C:\Program Files\Yahoo!\Common/ycsms.htm
O9 - Extra button: BitComet Search - {461CC20B-FB6E-4f16-8FE8-C29359DB100E} - C:\Program Files\BitComet\tools\BitCometBHO_1.1.7.4.dll
O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner v8 - {85d1f590-48f4-11d9-9669-0800200c9a66} - %windir%\bdoscandel.exe (file missing)
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {30528230-99f7-4bb4-88d8-fa1d4f56a2ab} (YInstStarter Class) - C:\Program Files\Yahoo!\Common\yinsthelper.dll
O16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - http://download.bitdefender.com/resources/scan8/oscan8.cab
O16 - DPF: {615F158E-D5CA-422F-A8E7-F6A5EED7063B} (Bejeweled Control) - http://www.worldwinner.com/games/v45/bejeweled/bejeweled.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/v6/V5Controls/en/x86/client/wuweb_site.cab?1176774252328
O16 - DPF: {8A94C905-FF9D-43B6-8708-F0F22D22B1CB} (Wwlaunch Control) - http://www.worldwinner.com/games/shared/wwlaunch.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://cdn2.zone.msn.com/binFramework/v10/ZIntro.cab53083.cab
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - http://aolsvc.aol.com/onlinegames/bejeweled2/popcaploader_v10.cab
O20 - Winlogon Notify: rqrqqom - C:\WINDOWS\
O22 - SharedTaskScheduler: Browseui preloader - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dll
O22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dll
O23 - Service: a-squared Free Service (a2free) - Emsi Software GmbH - C:\Program Files\a-squared Free\a2service.exe
O23 - Service: AVG Anti-Spyware Guard - GRISOFT s.r.o. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
O23 - Service: AVG E-mail Scanner (AVGEMS) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: PCTEL Speaker Phone (Pctspk) - PCtel, Inc. - C:\WINDOWS\system32\pctspk.exe
O23 - Service: Viewpoint Manager Service - Viewpoint Corporation - C:\Program Files\Viewpoint\Common\ViewpointService.exe

--
End of file - 10700 bytes


this is the viruses avg found:CSystem Volume Information\_restore{D9DA9968-71AD-490C-88D2-3518F4EECA97)\RP3\A0000273.exe

CQoobox\Quarantine\C\Windows\system32\o01PrEz\oo 1PrEz1064.exe.vir

I quarantined them both to the virus vault and then deleted them completely out my computer.however Im still have the same computer problems.can somebody please help me fix this problem

 

After fixing the entries I have listed below I suggest that you run a harddrive defrag. I would also recommend that you download and install a program called CCleaner. It will remove old garbage files from your computer and more important for you remove useless registry entries which could slow your computer down. Also how much ram do you have installed and how long have you had your computer? And do you use a machine debugger?

Fix these entries...

C:\Program Files\Viewpoint\Viewpoint Manager\ViewMgr.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = \blank.htm

O1 - Hosts: 216.93.174.28 a.tribalfusion.com

O1 - Hosts: 207.44.240.65 rad.msn.com

O1 - Hosts: 216.93.174.28 view.atdmt.com

O1 - Hosts: 216.93.174.28 media.fastclick.net

O1 - Hosts: 216.93.174.28 images.trafficmp.com

O1 - Hosts: 216.93.174.28 adfarm.mediaplex.com

O1 - Hosts: 216.93.174.28 media1.fastclick.net

O1 - Hosts: 216.93.174.28 media19.fastclick.net

O1 - Hosts: 216.93.174.28 media39.fastclick.net

O1 - Hosts: 216.93.174.28 count.exitexchange.com

O1 - Hosts: 216.93.174.28 leader.linkexchange.com

O1 - Hosts: 67.15.114.78 pagead2.googlesyndication.com

O1 - Hosts: 67.15.114.78 pagead.googlesyndication.com

O1 - Hosts: 216.93.174.28 ad.yieldmanager.com

O1 - Hosts: 67.15.114.78 ypn-js.overture.com

O1 - Hosts: 216.93.174.28 freeze.zedo.com

O2 - BHO: Viewpoint Toolbar BHO - {A7327C09-B521-4EDB-8509-7D2660C9EC98} - C:\Program Files\Viewpoint\Viewpoint Toolbar\3.8.0\ViewBarBHO.dll

O3 - Toolbar: Viewpoint Toolbar - {F8AD5AA5-D966-4667-9DAF-2561D68B2012} - C:\Program Files\Common

O4 - HKLM\..\Run: [NAVWatch] C:\NAVWatcher.exe

O20 - Winlogon Notify: rqrqqom - C:\WINDOWS\

 

aight I did that.my sound has improved but its still not 100%.I'll say its about 80%.the mouse is not as choppy as before.another problem that I forgot to mention is that sometimes my computer will shut down by itself.sometimes Ill be on the internet or doing something on my computer and it will just shut down or restart itself out of nowhere.my computer also makes a noise when it shuts down,like the inside of it is coming apart.I know its not a virus cuz i ran multiple virus scans with avg,spybot and adware for spyware.what can I do to fix this problem

 

How old is your PC? I would open the side panel up, gets some cans of air and air blast the dust out of that thing. Your problems are most likely hardware based from your description. Give the inside a good air cleaning.