Problem unmounting volumes
I have a problem with unmounting volumes. It seems that almost every or even every volume mounted (I've tried with .dmg and .iso) can't be unmounted — Finder says "The disk blah-blah wasn't ejected because one or more programs may be using it" and if I click Force Eject button, it says that the disk was ejected — but it remains where it were before, nothing changes. I tried to use Disk Utility, but it says that eject failed, and the disk could not be unmounted. Force Eject Mounted Volumes script wasn't helpful also.
In addition, when I insert a blank DVD, it stucks in Finder's sidebar even after I eject the physical disk, but it's possible to throw it out of the sidebar.
I tried to repair permissions on my HDD, to close all running applications (cmd+Q not red cross), but it made no difference.
What can be done with this?
Thanks.
MC374LL/A, Mac OS X (10.6.4)