Question / Help OBS messes up audio.

[Mulwarp]

When I play an MP3 in winamp, without OBS running, the audio i perfect.
When I start streaming/recording with OBS, the audio start´s to get "chopped" - you can hear it here:
http://www.twitch.tv/the_shed_arcade/v/37382411

Logfile here:
https://gist.github.com/67d14219f06efafa763e

Thanks
Michael