I've been having problems with my computer crashing for about 5 days now. Before that nothing. Its happened the most when i've been playing CoD MW3 when my screen suddenly loses the connection to the computer an a laggy sound is coming from my speakers. I' can play for 10 minutes to an 1 hour but then it shuts down. Recently i had a crash while playing Minecraft and spotify. When this happens i've had to shut the computer off by holding in the power button.
This i my CPU
AMD Phenom X3 2.10 GHz
3 GB RAM
Nvidia Gforce 9600 GS
Any ideas what to do?