Lately (last 2 months or so), if I go afk with WoW in full screen mode, after 30-45min the screen will go to screensaver, but when i come back, I cannot get the screen to show the desktop or the game. The screen is on, but will just remain black. A simple reboot fixes it though.
Now, yesterday, I went afk and fell asleep with WoW on. My girlfriend was the next to come back the computer and when she turned it on, on the desktop there were a ton of multicolored lines running vertical on my screen. All about 1pixil thick, they are spaced out. Sometimes they are pink sometimes green, just depends, and when I tried to start WoW the computer rebooted (think this may be a blue screen and I just have the option to reboot when it happens checked).
I shoudl mention, when I turn the PC on, in the startup and BIOS these lines are not there. They do not show up until you get to the User login screen for XP.
So I pulled out the graphics and the fan was pretty dusty. So I am hoping maybe a good case cleaning would fix this. I only had enough air to clean out the Graphic fan, and when I put it back in, it seems to work normal. Fan works very well, I dont see smoke, it isn't hot etc.
Wondering how and what I can do to pinpoint whats wrong once I get all the dust out.