Recently, I did two things that caused my computer to be messed up because I did them in the wrong order. First, I installed Windows XP. Then, about a month later, I installed a new motherboard and processor in my computer. Needless to say, Windows refused to boot. I had to use the auto-repair built into the WinXP install disc. What this did was reinstall windows without reformating and while changing as little as possible. From what I understand, Windows installs to work specifically with the hardware in the computer it installs to. Since I did not completely reinstall it, it did not set everything as it should. Now I can run pretty much anything I could before, but running any video file on any program causes the program to freeze while loading and proceed to eat up my system's memory. This doesn't apply to audio in winamp or windows media player, or any other media player as far as I can tell, but video just won't run right. I've tried reinstalling the divx and xvid codecs, but the problem isn't limited to just avi or mpeg files. Does anyone know what I need to do to fix this?