thanks for replying.
I installed V 4.18 and no changes. Unit 0 (and 1,2 & 3 as well) are Paula 8bit FAST.
Tried Loom (floppy) - no sound
Fate of Atlantis (CD, VGA) - no sound
DOTT - demo (black screen, does not even load)
DOTT (full) - no sound
PS: don't really understand what the tooltype "AUDIO_THREAD_PRIORITY" means or does. It's set to 1.