No sound after PulseAudio restart

Hi,

Here is what happens : GrooveBasin stays idle (ie. unused) for a bit of a time (here couple of days), then when trying to play music again, I get no sound.
Strange thing : the seek bar is moving as expected, only I get no sound.
Stopping and starting GrooveBasin solves the problem.

I'm using PulseAudio as the sound server and, after investigating, it seems the server has been restarted **after** GrooveBasin was started.
It seems connexion with the server is not reestablished.

Thanks

Jérôme