Comment 4 for bug 137041

Still present in Intrepid.
It's also reproducible in windowed mode: Set volume to max, move the totem window to the bottom of the screen, click the volume button.

snifer@snifer-laptop:~$ dpkg -l | grep totem
ii libtotem-plparser12 2.23.3-0ubuntu1 Totem Playlist Parser library - runtime vers
ii totem 2.23.4-0ubuntu2 A simple media player for the GNOME desktop
ii totem-common 2.23.4-0ubuntu2 Data files for the Totem media player
ii totem-gstreamer 2.23.4-0ubuntu2 A simple media player for the GNOME desktop
ii totem-mozilla 2.23.4-0ubuntu2 Totem Mozilla plugin
ii totem-plugins 2.23.4-0ubuntu2 Plugins for the Totem media player