how old is ur monitor? i tried plugging a high end card once into an old monitor and the monitor showed gibberish. plugged in a newer model, worked fine.
since you just got it this christmas, its still under warranty, it sounds like the card is failing possibly by overheating, have you checked to see if the fan on it was spinning?
"I'd get it RMA'd as soon as possible."
what's that mean, I'd hate to get a new video card now i just bought that one, it's an Nvidia 6800GT 256MB, and it's not my monitor it's a new LCD screen.
So you mainly think that the problem is with my video card, I need to know for sure if that's the problem or not because i contacted the company and it's under warranty still and i need to know whether or not i should send them it.