This is why ColorTiling is still disabled by default for your card... just
leave it at that? :)

(In reply to comment #5)
> If I disable ColorTiling, Gnome doesn't load completely only showing the
> desktop wallpaper Errors about unable to find displaybuffer (or something
> like that... not sure of exact error)

Sounds like a separate issue. FWIW, 'unable to find displaybuffer' sounds like
something I've seen myself, though AFAIR without ill effect.