I'm having a strange problem with netRhythmbox; the first time when
starting the program, playing an internet radio station works perfectly. 
After that though, if I stop the pipeline and then play the same station or
a different one, the sound will go too fast, or skip, or both.

The fact that the sound's going too fast makes me strongly suspect it's a
GStreamer bug somewhere.

This bug isn't *always* reproducible, but most of the time it will happen
eventually, after playing a few stations.  I'm pretty sure this isn't just
my system too since I've gotten a few emails from users who are having this
problem.