Laptop screen turns white while playing games
Ok so I was playing a computer game with my Acer Aspire 5742 laptop, then after about a half hour the screen flickers then the screen turns white. I tried to press Alt + Tab so it will go to the Desktop but the white screen didn't go away after that. But after a few seconds the screen goes back to normal. So I returned to playing the game again. But after just a few minutes, the screen started to flicker and the screen turned white again. So I press Alt + Tab again and pressed the Windows key. The white screen didn't go away and when I pressed the Windows key 2 times, I noticed the color changes between the 2. When I returned to the Desktop, it's white, while when I pressed the Window key, the screen turns white with a slight purple color because the background of the Windows 8.1 menu is purple. So I put the laptop to sleep then when I turned it on, the screen goes back to normal. I don't know what triggers this white screen problem. When I don't play the game, the screen normally works for now and I do hope to find a solution to this problem asap.