The sound hangs and plays in 1sec loop

[Hengoroth]

Each and almost every time the game are alt-tabed down and the computer are set in sleepmode,when i wake the computer and bring the game up, the music repeats itself in a 1 sec loop for about 1-2min, then breaks with a loud bang and then everything are fine again. The music loop break all other sound, so spoken and ambience-sounds are lost untill it goes over. This has happend on both our laptop and my stationary computer ( both lower high end computers)