I've been scouring the forum to find anything similar to my problem, which is that my keyboard doesn't work now that 10.5.7 is installed. It is not a problem with the keyboard itself, since I can use it fine in the boot window before os x loads.
If i run dellefi 1.1 or 1.2. and then reboot, it will sometimes make the keyboard work again, but only for the one time after I've rebooted -- when I shut down the keyboard stops working again.
Has anyone else had this problem? I followed the safe boot/ runEFI / etc. that we've all done after installing the update, which solved the garbled video issue, but have since had this keyboard problem.