When i insert a cd or memory stick and try to eject it i see the message:
"Cannot eject the disk. One or more files on this disk are open within an application."
And of course i can't eject it. To eject the cd i must reboot my PC.
I have tested to insert a cd without open something from it with no results.
Always shows the same message..

I also want to notice that except dolphin i use nautilus which is necessary for Dropbox.
Could it have any association with the problem?

Thank you in advance!!