I'm running FC1.90 (testing release) and I've upgraded the kernel with yum. When I chose the new kernel in the bootloader the bootprocess goes fine without any error, but X wont start cause of a mouse problem. I can't understand why, because the /etc/X11/XFConfig-4 is the same for both kernels.
P.s. I've removed the line "rhgb" from /boot/menu.lst