RE: Xfree86 problems with woody (MORE INFO)

["Sheldon E. Auerbach" <seauerbach@earthlink.net>]

I had the same problem with a similar NVIDIA GeForce video card.  XFree86 
failed with the "(EE) Screen(s) found, but none have a usable 
configuration." log message.

The problem seemed to be frame buffering. Try setting UseFBDev to false in 
/etc/X11/XF86Config-4.

That worked in my case. I hope it does in yours as well.