Could you try the newer driver from Debian:
http://ftp.debian.org/debian/pool/main/x/xserver-xorg-video-nv/
it should install and run just fine. There are some modesetting fixes for newer cards.
Could you try the newer driver from Debian:
http:// ftp.debian. org/debian/ pool/main/ x/xserver- xorg-video- nv/
it should install and run just fine. There are some modesetting fixes for newer cards.