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