Mac OS X messing up desktop file?


Hi all of you happy people!

I have the following problem. After installing OS X 10.1 over my 9.2.1, my hotsync didn't want to work. After that, I realized, that 'something' messed up the classic desktop file, so I rebuilt it. Unfortunately the drag-and-drop still doesn't work, if I try to install something that way. Any idea, what to do? Tried to reinstall palm desktop, trashed preferences, nothing helped.