Recently upgraded to 3.3.1 and now when i go to view wmv files(would pull up my mplayer-plugin) it says nsviewerplugin has crashed..then doesn't show the video...this is new..havn't found really much on how to fix this..i even redownloaded the mplayer-plugin and reconfiged and what nto still no luck....

Daum

I had a few sort of similar issues. After upgrading, launching xmms would kill konqueror, and launching kate would kill my kicker panel. I found out that you can't upgrade your rpm's while running kde which I had. Reinstalling them from a terminal not running kde worked for me.