After installing Solaris 2.6 on an Ultra 10 with an m64 graphics card
and rebooting, the following error message was displayed:

 	X-server cannot be started on display :0

Trying to start OpenWindows failed with the messages:

	9  SUNWxxxxx bad class

	instance, line 163 in
	/usr/openwin/server/etc/owconfig

* Check to see what graphics card are installed by using the 
following command:

	# prtconf -F

* Check the device driver packages for the graphics card.

	# pkginfo -l SUNW_package_name

* If possible, get a copy of the /usr/openwin/server/etc/owconfig from 
another Ultra 10 with the same graphic card.  

The possible error message:

     frame buffer , it was not defined in the file.

may be caused by the fact that the /usr/openwin/server/etc/OWconfig file 
was copied from another Ultra that did not contain entries for the m64 
framebuffer because the Ultra 10 did not have the framebuffer.