Black screen on any online game

For the last few weeks I'm encountering a serious problem. When I play a game after 10 minutes all the way to several hours (It is definitely getting more frequent) my screen turns black (I can still hear sounds, I can still speak on Skype etc.). But the computer is completely locked - I can't...

Just like the title says heres the SF diagnostic folder attachment i'm not sure if this is the right way to find help

It has been 3 days i am experiencing problem with my windows 7 64 bit on my laptop. Laptop specs: Asus K42Jr i7 1.73 GHz Windows 7 64 bit SP1 8 GB RAM, ATI Radeon HD5470 The attached is the SF folder from "Grab All". Black screen appeared while playing online game. And followed by...

Hey, i just recently installed windows 7 on my computer.... when i am in the middle of the game my screen will turn black but my laptop is still running i can hear the sounds it's just that the screen turns black only.... anyone plz help me.... my screen only turns black if i alt+tab to desktop...

I got a virus/maleware last week and have done a few clean installs of Windows 7 and when I go online I always get the black screen of death...can't do anything but turn it off. (Gateway 64bit) Can't find any solutions and this is my last hope before I go out an buy a mac that I really can't...