I've installed SLES 11 sp 1 x86_64 on a computer with 8600 GT videocard
you are aware that you HAVE!!! to buy the required support contract
SELS is not a free OS
Also service pack 1 is old ,VERY OLD!!!!
the current is service pack 3
i would reinstall with the current SELS
contact your sales rep and transfer the license to the current SELS sp3
the nvidia.run driver is known as "the hard way"
USE!!! the novell "x11-video-nvidiaG03.rpm"
it is in the "SUSE enterprise Linux Server" software roeps
again contact Novel tech support for access to the novell repos
the Opensuse docs will help
you have to buy a license from novell to install software on SELS