I'm seeing occasional failure warnings during boot when udev starts that say "udev_run_hotplugd abnormal exit". I haven't seen any operational problems as a result of this and a little digging shows there is an open Fedora bug #218234 on this very problem. I'm posting this just as a "heads up" that this is not a MythDora or hardware problem, just a glitch in Fedora Core 6 itself.