ahaa!did u installed latest driver via envy or using nvidia script?
BTW,did u know that nvidia silently released 171.05
*www.nvnews.net/vbulletin/showthread.php?t=107265
"gnome-session-properties" have a startup manager.there u add "metacity --replace" or disable compiz --replace commands.
also,on ur xorg.conf,did u have below lines,if not add!:
Code:
Section "Extensions"
Option "Composite" "Enable"
EndSection
there is a lot of known problem with 8xxx series in Linux.
I urge you to watch/subscribe Nvidia Linux forum here:
*www.nvnews.net/vbulletin/forumdisplay.php?f=14
and especially these threads:
*www.nvnews.net/vbulletin/showthread.php?t=105593&highlight=xorg.conf+8800
*www.nvnews.net/vbulletin/showthread.php?t=104713