I do believe this is a video card problem but im not entirely sure, while i was playing world of warcraft today the whole game froze and there was all sorts of glitches or artifacts on the screen that forced me to restart, this happened to me twice. After the 2nd time, the glitches on the screen would happen on startup where it would post all my system specs before entering windows, and then when it entered windows (where it has that little moving scroll going through the tube while loading) it would also have those glitches. After that, it normally should boot into windows but this time it shows up "no signal" on the screen and the monitor turns itself off and the green light on the monitor turns to orange, seems like its in standby mode... Thanks in advance.