Seeking problems

Seeking within tracks is very slow, or put another way, Songbird becomes unresponsive when seeking. When Songbird finally starts playing there is often a click or other distortion. I've noticed this problem especially with flac and wma files.

This makes Songbird unusable for assembling playlists (unable to quickly seek ahead to verify the track is what I expect).

I'm using Songbird 1.1.2 on Windows.