Comment 24 for bug 644644

This probably is not a user configuration error, or configuration clutter from an older ubuntu version.

I just did the following:
 -updated my Ubuntu 10.10 install to this morning's latest updates
 -created a brand new user
 -rebooted
 -logged in as new user, for the first time
 -opened file manager, double-clicked on a movie which started playing in totem

I still encountered the bug.