I've had this problem on Two different video cards so I don't think its the card, but it still could be an nvidia driver issue.
What happens is i'm going along fine and all of a sudden the bottom half (exactly half) of the screen will stop rendering any video and it will get some crossed lines or garbled stuff on it, and the entire screen will now be scrunched up to the top half of the screen and be only rendered there. This has happened in 3d games and on just the desktop...it is rare though, maybe 1 or twice per week.
This has happened on a 7950gx2 card and a 7900gto card.
The fix is to reboot and things work fine again.
What happens is i'm going along fine and all of a sudden the bottom half (exactly half) of the screen will stop rendering any video and it will get some crossed lines or garbled stuff on it, and the entire screen will now be scrunched up to the top half of the screen and be only rendered there. This has happened in 3d games and on just the desktop...it is rare though, maybe 1 or twice per week.
This has happened on a 7950gx2 card and a 7900gto card.
The fix is to reboot and things work fine again.