Ok... so ive been dealing with this for a while now. I just got a new motherboard and processor it is a Intel Pentium 4 CPU 3.00GHz, 1.00 GB of ram and the system i am running is windows xp professional service pack 2. the most recent processor i had was an amd athalon something or another and it got fried and wiped out my hard drive because of a virus. and now... with this new set up, my computer will restart itself and i noticed that it mainly only happens when i am watching a video on youtube or sometimes when im talking with someone that is using a webcam... and everytime i try to play a game it restarts itself... also... my internet... i use mozilla firefox and it keeps getting errors that tell me that i have to close it... sometimes it will happen whenever i check my email using internet explorer... to me it seems like something might be wrong with the video part of the motherboard... im not sure... i really could use some help. Thanks!