Hello Parkpaya, checking your screenshot I see that the vgatext driver is installed for your geforce card. Thats the incorrect driver I think. Did your try installing the latest Nvidia Driver (http://www.nvidia.com/object/solaris_display_96.43.13.html) and check that works.
Also a scanpci -v output from the terminal could be helpfull. Regards -- This message posted from opensolaris.org
