Please describe the problem:
When moving the "seek" bar in Rhythmbox to go forward in the song using the right cursor keys or the mouse wheel, sometimes the slider is positioned at the beginning of the bar.

Steps to reproduce:
This is very easy to reproduce for me, no matter what file format I'm playing or what backend I'm using (I've tested with Pulseaudio and ALSA): play a few seconds of the song, and then press *and hold* the right cursor key. After a few forward "skips", the slider will return to the beginning of the bar, will advance a little and will return again. I can do this forever withouth the slider ever getting to the end of the bar.

With the mouse, after a few rotations of the mouse wheel the slider goes back to the beginning.

If I allow a few seconds between cursor key presses or mouse wheel rotations, everything works fine.

Actual results:
The slider went back to the beginning (left) of the seek bar.

Expected results:
I expect that the slider goes to the right if I press the right cursor or move the mouse wheel.

Does this happen every time?
Every time I've tested.

Other information:
I discovered this problem in Rhythmbox 0.11.5, the version shipped with Ubuntu Hardy.