ok here is my problem,

Whenever i am playing a game, it eventually crashes, resulting in a blue screen, frozen comp, or it just crashes the game. Msn crashes at random aswell. And occasionally a blue screen just appears from nowhere.

An extra 300gb of memory was just put into our comp, for a reason I dont know why, and a message pops up every time i start up my profile saying "couldnt install hardware, hardware may not function properly" sort of thing. I think this may be the culprit for some of the problems. Previously, we had to get a new video card because ours was messed and would always bring up a blue screen. The new one we were given under warenty was the next grade up as they didnt make the old one anymore. The one we have now is e-GeForce 7300 Gt by nvidia. Its supposed to be a pretty good one.

This is what it says under my computer properties: AMD Athlon(tm) 64 X2 Dual
Core Processor 3800+
2.06 GHz, 1.00 GB of Ram
Physical Address Extension

Our comp is supposed to be pretty good.

I have tried different anti-virus programs and none could come up with anything.

Plz help me!!!!!! It has been going on for a while now and its really ticking me off!!!!!