I'm running a Core 2 Duo 6600, no OC, 2gb of Corsair 800 ram, MSI P6N platinum mobo, PNY 8800GTS w 640, Antec 550 PSU and a Dell 19" LCD 1905FP. System was built 3 weeks ago and has been fine. Just the past few days, and not always, little colored squiggly line, in clusters of 3 or 4 lines are populating the screeen, fading away and then coming back. Any ideas if what might be causing this?