I had the same problems, under the same circumstances. Run noatun from a terminal and check the errors. Mine couldn't find the all of the vorbis libraries because of a missing link: libvorbisfile.so.0 -> libvorbisfile.so.3.0.0 in /usr/lib, so I made the link ln -s libvorbisfile.so.3.0.0 libvorbisfile.so.0 and everything works fine.
Also my system couldn't find the liquid style even though Mosfet's Liquid showed up in the control center. My fix was to download the liquid source tar compiled and installed it then moved the installation from /usr/local/kde to /usr replacing the files installed by the deb package. That worked, but it didn't make much sense to me. Charlie