Hey guys! So i was playing WoW and all of the sudden huge lines started showing up everywhere... Now also when i play any game or when i start up my computer it flickers. This happened out of no where. Anyone know what could be going on? I already tried to update my video drivers, they are up to date. And have been. This was so random. Any help would be HUGELY appriciated. It was a like a 550.00 video card. HIS ATI Radeon 5870 Turbo w/ 1g DDR5. I dont want to have to get a new videocard >< And if i do i hope it's still under warranty. I bought it from Amazon about 3-5 months ago.