I am not the original submitter. However, I had the same problem (fresh Xfce/Wheezy amd-64 install via the business card iso and using the Xfce desktop task in aptitude). Upon checking the installation status of gstreamer0.10-alsa, I found that aptitude had *not* installed this plugin. Installing the plugin via aptitude resolved the problem.
Thanks, Jonathan -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org