rosegarden: wav-files play from the beginning only

Binary package hint: rosegarden

I have a problem with my ubuntu-feisty version of rosegarden (1.4). If I
import a wav-file, I can play it from the beginning only. If I place the
"play-line" in the middle of the track, the play-line moves to the right
as it should, but the sound played is from the beginning. If I use
Rosegarden's "transport" player, I can start playing from the beginning
of a file only - no matter how I try.

I have compilated rosegarden-1.5.1, and the problem disappeared.