songbird doesnt play the next track

Songbird doesn't play the next track in the playlist, when last track has ended. Neither does Songbird start playing playing from a position, which I have chosen with the position slider. I'm playing flac files from a FireFly server over the Internet. I have set PlayMode to Repeat All. Buffer is set to 5 MB. I'm using version 1.1.2, Build 1042 (20090331142126), on XP Home!