I updated to Kernel-2.6.18-1.2868.fc6 and now I no longer have Gnome. My login screen no longer lists Gnome as an option. I was able to logon into KDE and saw that Gnome was unchecked with Software updater? I ran rpm -qa | grep gnome and saw the packages installed, but the Software updater says otherwise. On my other systems (4) I was able to install the new kernel without the same problem... I also noticed that if I ran rpm -qa |grep gnome-d | wc -l the working systems have 54 packages and the fouled-up system only has 38.. Has anyone else experienced this? I let the Software Update install Gnome again and will restart the GUI.