Dear All, I am having the following problem with the 2.6.6-1.427 kernel. Have submitted a bugzilla report at https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=125905 if anyone else is having this problem and wants to add more detail. Description below. Jonathan. Description of problem: kernel-2.6.6-1.427 causes problems with Xorg - erratic and ill defined mouse behaviour being most noticeable. This seems to be related to the following message: KDSKBENT: Invalid argument failed to bind key 255 to value 814 This message appears on the terminal whenever changing runlevel and when shutting down. From a quick google, this seems to be an SElinux issue, though I am, and always have, run in permissive mode. This is on a very fresh install of FC2. This problem is NOT present in kernel-2.6.5-1.358 In X, the mouse behaviour is not reproducible, sometimes it happens, sometimes not, but it manifests itself as an inabilty to switch focus with the mouse, the mouse cursor doesn't change from the text entry bar to the pointer etc. This bug renders the system unuseable, forcing a reboot and use of an earlier kernel. Version-Release number of selected component (if applicable): kernel-2.6.6-1.427