Has anyone gotten the open source nv driver to work
with an nVIDIA 6800 card? It's not in the list of
cards that shows up in the XFree log file on startup,
and I'm getting an

nVidia Corporation unknown chipset (hex code which escapes me right now)

message. My card is a Gigabyte brand 6800 (not a GT),
but I don't think that would matter.

The card works okay using the "nvidia" proprietary driver,
but you can't rotate the screen with that one. :-(