Hi, I have been playing Age Of Empires 3 recently and when 20-30 mins into the game my monitor just switches itself off(Instead of the green light it turns red on the monitor power button) Then I cannot switch it back on without restarting the PC and losing my games progress.

I used to play this game a while ago and it was fine then but just started playing it again and it seems to have developed this problem.

This only seems to do this when playing this game as it's fine for hours on end when connected to the internet. Do you think it could be a problem with the game, the monitor or the PC itself??

My monitor is NVIDIA GeForce 6600.
I have been into the power settings and changed it to never shut down and it's still the same.
Any ideas or help would be much appreciated.

moved

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