I have had an intermittent problem with unmounting. I cannot be specific at this time, whether it is partitions or cd-roms. As I said, it is urregular and doesn't seem to happen according to anything I have done that I can pinpoint. In any case, when I try to umount the device, I get an error message stating that the device is busy. I have even tried to umount as root, and still the same problem. Then I have tried to umount /dev/hdx, instead of umount /mnt/point, but still the same. Only solution is to reboot, even logging out and back in won't solve the problem. I have synced and made sure that the device was definitely not being used, as in not being displayed in a konqueror window, etc, but have, as yet, not been able to solve this minor, but annoying, problem. I thought it could be selinux, so I disabled that, but still the same scenario. Any ideas?