Do you use the binary nvidia driver, or the free nv driver? Twinview would suggest nvidia.
** Changed in: xserver-xorg-video-nv (Ubuntu) Sourcepackagename: xserver-xorg-driver-nv => xserver-xorg-video-nv -- Ubuntu 6.10 RC LiveCD works on 2nd monitor but not first https://launchpad.net/bugs/67878 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs