Ok, I'm an idiot. I moved the files a month ago; that is the reason. I didn't notice much of the db didn't work before the notification-thingy.
However, I don't think rhythmbox handles moved files very well. I can't seem to import them again. Hum. -- [Dapper] Notification flickering through MANY songs when forcing change+shuffle https://launchpad.net/bugs/43756 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs