I am having an issue where the superdrive in my BRAND NEW mac pro isn't working correctly. It doesn't read DVD's consistently, System profiler hangs when you click on disc burning and after that the drive does not respond to eject commands. When you do get the tray to open, insert a DVD that is a known good disc, it will "mount" on the desktop then when you click on it, it hangs trying to read the disc. When you right click and select eject, the icon just goes away and the disc does not eject. A restart at least allows me to eject the disc. Resetting SMC has no effect on the drives behaviour. Can anybody help me? Or suggest a good aftermarket DVD drive?