Device Manager won't unmount

Wed Jun 2 01:00:10 UTC 2010

Very recently I've found that when I try to unmount a removable device
using the Device Manager plasmoid, it tells me the device is busy even
when it isn't (as verified using fuser). I can unmount it from a Shell
with no problems.

This used to work in F12. I updated to F13 last week and it still
worked. I've done several updates since then and it was working till
yesterday. No updates since yesterday have anything to do with KDE.

Ideas?

poc