Crashes in Starcraft 2

[code array]

Hello, Everyone.
I have been playing Starcraft 2 and just recently my computer has been crashing and restarting at random intervals.
The specifications of my computer are:
Core i7 860.
Nvidia geforce gt 240
8gb RAM
All are at stock clocks/voltages.

My thought was the graphics card as the first thing to happen is the monitor loses input before the rest of the computer shuts down.
My graphics card drivers are up to date.

I don't really want to spend any money to fix this issue as I am building a new computer in the very near future.

Any thoughts on what could be causing this?
Thanks in advance.

 

[simon12]

It could be heat or a bad power supply.

 

[code array]

Turns out that my video card drivers were not up to date.
After the update I tried again and it has not happened after a couple of hours of game time.
Hopefully this issue will not crop up again.
Thank you for your contribution.

 

[code array]

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