i've been suffering lately from sudden shutdowns with no error messages whatsoever and nothing to relate the reason. I have a pentium 4 , 2.8 Ghz processor, 512 RAM, 64 MB VGa. What i've been mainly doing before it shuts down is gameplay, like NBA 2005, Red Alert command and conquer, and similar games. It even shuts down when im just browsing the internet. Any hints?