I have tried Amarok 2.1 beta from unofficial repository kubuntu-experimental (line for sources.list: "deb http://ppa.launchpad.net/kubuntu-experimental/ubuntu jaunty main") and the problem is fixed there.
I have tried Amarok 2.1 beta from unofficial repository kubuntu- experimental (line for sources.list: "deb http:// ppa.launchpad. net/kubuntu- experimental/ ubuntu jaunty main") and the problem is fixed there.