I'm running Ubuntu 10.04 and I tried Amarok. It was quite cool, but I wanted to try the latest version so I typed into the console:
sudo add-apt-repository ppa:kubuntu-ppa/backports
sudo apt-get update
sudo apt-get upgrade
worked so far I got an updated version now. But the problem is this version is not very compatible to Ubuntu 10.04 and many features aren't working properly...
How can I change it back?