Recently both drives on my 2008 Mac Pro fail to eject. Pushing the eject buttons triggers a sound as if something is trying to eject but holding down the flap on the front of the drive shows no movement. Both drives are greyed out when I open disk utility to try to eject from there. I've tried all of the standard stuff, ejecting from the top bar, rebooting holding down the mouse, unplugging everything and rebooting. Nothing seems to work and I'm becoming increasingly frustrated. The drives won't open on the other user account I have setup either (both accounts are admin) and even win7 which is installed on a separate drive will not open the drives when using bootcamp.