Video signal lost when playing skirmish

So, when I start a skirmish, many times (not always) the pc loses video. I can still hear the game but the monitor is receiving no signal. Can anyone help?

New driver?

I tried that and a bunch of other things. I think it may be an overheating problem and I am going to clean the tower and see if it helps.

1 Like

So I cleaned the tower and still no luck.