thanks Dave, for explaining and writing your help.
just tried to reproduce it but unfortunately.
must indeed be some routing or setting, now indeed I remember from an earlier fail that indeed it was someting in AD, had to activate the AD outputs ore something.
But other than that had routing / no sound issues with other soft synths too, for people like me would be great if it was a bit more 'plug and play' / idiot proof

Hence maybe the succes of Fruity Loops.
Anyway, I'll shut up now since this is not my thread...