Recently after recompiling my KDE build, I was exploring what has changed in the few weeks when my notebook wasn't with me. Marco is really working hard on the netbook shell and I thought to give it a try. Man, it looks superb and I like that on my notebook :)
Anyway, I switched back to the regular Plasma desktop and after I logged back in, plasma-desktop refused to start automatically. I tried removing my .kde, but no luck.