I have a Mac Pro 2010 which I baby'ed since purchase. Yesterday, the metal door that opens and closes when the SuperDrive tray ejects and retracts start to stick. Now, even when the tray retracts fully back into the SuperDrive, the drive bay door remains open in the retracted down position. I found this thread from MacRumors forum long ago and have already tried the suggested fix, but it did not help: http://forums.macrumors.com/threads/anyone-elses-sliding-drive-door-stick-on-mac-pros.281969/ Can someone please give me some other troubleshooting tips or fixes? Anyone tries to "oil" the hinges? If so, how? What about out-of-warranty repair by Apple? Is this possible? Please help!!!!