nvidia-xconfig ruined my monitor settings

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http://crunchbang.org – I don't have a xorg.conf file, and I don't think I ever did. When I first installed crunchbang last year I just played with "xrandr" to add monitor settings, which is also broken now, giving me the following error: "Failed to get size of gamma for output default".If I do a system search "sudo find / -name xorg.conf",  I only get 2 files in /usr/share/doc/xserver/.../examples.  It's also not in /etc/X11.I guess I'll have to create a xorg.conf now? (HowTos)