[Part 2] Download torrent & newsserver package(s)

[Adanteh]

Just did a clean install of Xbian (Alpha 5) and installed the download package. Configured everything and used the following command:
sudo apt-get install unrar-free

Downloading goes fine, but as soon as it starts extracting my Raspberry crashes. Any idea what can cause this? Should I turn off XBMC first? Power supply problems? (2A supply)

Edit: Hmm, getting Failure message with extracting now: Post-processing script may have moved files elsewhere.
Any idea? I have unrar-free installed. Also, double checking.. Do I actually need to make a tv category myself in nzbget to let that work properly from sickbeard? Also do my sickbeard settings matter for this error?