Comment 1 for bug 174410

So do you mean just the program is freezing, or is all of X freezing? In other words, is it Amarok that is freezing, or is it everything on your desktop?

This happens when you drag any file into the playlist, no matter where it's from? I assume you're dragging from Nautilus (the Gnome file manager, if you're using a stock Ubuntu install).

I have not seen this problem, and can drag and drop both files and folders into my Amarok just fine (usually). Sorry. =/ One thing you could try, since I don't know a whole lot, is simply making sure it's not something messed up with your install. If you have enough RAM for it, put in the Live CD and while inside that, install Amarok, and try it again. If the problem doesn't occur, something is messed up with your install. I'm assuming it is, because I have no problems with that on any of my machines.