This has been bugging me ever since I started using my computer again, and the 7 RC has been nicer about it than XP, but nonetheless, it's a hardware issue. I left my computer to sit for a good few months because it would freeze whenever anything Direct 3D would run... Then I found out my CPU fan was dying, so I replaced it, but the issue still hasn't improved. Even while running Picture Viewer or Google Earth, after a few minutes of use, the cursor will stay put, the harddrive light will turn off, and it just sits there with the same screen, hung. I've tried to do background reading, and people claim either a bad CPU, Video Card, or Power Supply (RAM has been tested multiple times, all passing)
Any ideas, tests, suggestions are very greatly appreciated, as almost a year of this is pushing me to the breaking point.
AMD Athlon 64 X2 3800+ (Socket 939)
GeForce 6600GT (AGP)
2gb Mushkin RAM
Seagate 160GB HDD (IDE)
Lite-on DVD+-RW drive