Without more information it's nearly impossible to tell what's wrong. I did a preupgrade on my desktop from F14 to F15 and everything works fine with the binary nvidia drivers. I used both an oldre 7600GT and recently upgrade to a GTS450. I haven't had to mess with my xorg.conf at all. As far as kmod or akmod, they're pretty much identical. With the straight kmod you have to be careful about kernel upgrades because it will not get updated until the 2nd yum update run and occasionally there's a significant delay between a new kernel and the kmod driver being available. Of course the akmod package allows you to build your own kmod package on your end without having to wait for the kmod to be available but has the down side of needing devel tools including kernel-headers and kernel-devel. Richard -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines