I started guiminer today for the first time this month and after a while I thought it was ok, but when I came back in the room my screen said "No signal or signal cannot be displayed" but my PC was still on and running. I turned off my computer started it back up again and tried it again and it did it again after about 5 minutes.. I'm still using the same OC's that I usually use on the same card.
Anyone got any ideas?
I have 1 idea and it's maybe my GPU is too cold. Does that happen to a card if it's too cold?
No, your card can't be too cold. Let off of your overclock a bit. Over the course of time eventually you can overclock less and less as the life of the card starts to diminish.