CD won't eject...
 

It was ejecting fine until a bit ago. Now all it does is say:
eject: unable to eject, last error: Invalid argument

I'm on the GNOME interface that came with FC3 if that helps at all.

Just out of clarification, are you using the "eject" command in bash, or are you pushing the button on your machine to eject the disk?

And out of those options, which work?

neither one works, I have to go into the terminal and do eject /dev/cdrom

try umount /dev/hdc
it may not be hdc, just use whatever your cd-rom device is!
and then eject

tried that, says it's already unmounted.