Computer Crashes and Reboots

Hi All, My computer crashes and restarts regularly. The reply I get back from Microsoft is always the same. I have a device driver problem. But no more info than that. I had my computer formated and reloade last week and it still crashes. I am trying to attach some minidump files. I don't seem to be getting them attached??

Hi All, Here are the minidumps. Any info would be appreciated.

All the dumps are crashing at your video card drivers. See if you can update them. Old CPU = old video card?

I installed a new video card today. GeForce 6200 LE. I discovered that I need to upgrade my power supply now. Currently 180 watts max. and need at least 300.Probably the mother board will be next! I also installed a Microsoft Force feedback joystick. Is my computer still crashing at the video card?