Description of problem:
With Fedora 8, when you put the mouse over a audio file (mp3, wav, flac, etc.),
a balloon within a musical note appear and gst-launch-0.10, in background, read
 the file and stop when the mouse is out. The problem is that gst-launch-0.10
does not react on mouse over a ogg file, unless you have selected the file at
least once after (re)login.   

Version-Release number of selected component (if applicable):
gstreamer-0.10.15-1.fc8

How reproducible:


Steps to Reproduce:
1. Open a directory which contains ogg files 
2. Put the mouse over one of them
  
Actual results:
Nothing happen

Expected results:
The file is read by gst-launch-0.10