I am having a sound driver issue. Running Windows XP and everytime I restart my computer, my sound goes away. We had a trojan infect the sndvol32 in the program files, which I have since replaced; and when I reinstall the REALTEK AC'97 4.03, they work fine; until I restart again. I am not showing any conflicts in my hardware manager, and McAfee is not finding any infected files. Any suggestions?