Why Does My Screen Flicker on and Off while Playing Games?

i have a nvidia 7900. recently my screens began to flicker whenever i play games on it. i never had any problems with the games until recently. does anyone know why??

My specs: Sapphire Radeon HD 7870 Intel i5 3570-k ASRock z77 extreme 4 8 gigs of ram (in one slot) Windows 7 The screen flicker only happens when playing games, and even ...show more

so when i play heroes of newearth the screen will go black and the sound will get all screechy and distorted and then it will just say no signal on the screen this is very annoying as i never get to finish games i start. also while playing battlefield...

So I've been thinking of getting a PS3 but I cant choose between the fat PS3 or the slim one. I want to get a fat since it looks nicer but on the other hand i want a slim PS3. This is because I've heard from some people that there is more screen tearing...

Hi! I've got myself a brand new computer few days ago. I did not encounter any problems until I started playing Assassin Creed and Dragon Age: Origins. It let me play Assassin's Creed for about 1 hour (the tutorial before you go find the traitor) when...

when playing games, my window is always 1/2 the size of the screen if i click full size it remains the same size but the rest of the screen is black. i know it can be full screen because it was in the beginning but i dont know what happened to change...

Whenever I try to play a game on my computer I run into a problem. The top right of my screen is visible but the rest of the screen is black. This makes playing games very difficult because I can only see part of the screen. I've tried to fix this problem...

Something really weird happened one day when I was playing Literati in Yahoo Games. The screen suddenly expanded and now I can still play the game but I am unable to reduce or move up the screen to be able to chat with my competitor. I have also found...

I have a laptop and I've been playing games on it for the past 1 n a half yrs. Now, there's a problem. Whenever I open a game n start playing, it doesn't go to Full-Screen mode but to a half full-screen mode where the background's black n the game is...