Spring RTS Engine

Today, I've been having a really irritating problem while playing spring :

After 10 minutes or so, my monitor screen goes black and my computer restarts - instantly.

This only started happening today, I do not believe it's somehow restricted to spring, hence i'm not posting in the help & bugs section.

Solution, anyone?

E: Nevermind this topic, I think I have a busted power supply fan - been smelling traces of "burnt wire" everywhere, yet can't quite put my hands on it - checked the back of my case for the fan's AIR - it's HAWT.

Disable restart on blue screen and see what said blue screen says. If no blue screen, stop overheating your graphic card/cpu.

Sounds like the same problem my friend had years ago. Random restarts and such. After I 'volunteered' to fix it I noticed the power supply fan had completely crapped out. A new fan fixed the problem.