Thanks Darius,
sorry, my guests are created with Fusion 3.1 (or 3.0) and I start migrating to 5.0 yet.
We've supported HD Audio for Mac OS X guests for a while now. (I don't remember which release it was added.) If audio isn't working, your VM might have an old (non-HDAudio) sound device, in which case removing it from VM Settings and re-adding it should give you a new HD Audio sound device, and that should get sound working.
After installing the new VMware Tools I get no Sound support.
I'm able to switch to "On" in "Sound Card", but in the guest system, I can't select any sound device in "Sound", "Output", there is no one.
Thanks for your help,
I start reading the new Fusion 5 Manuals ...
With regards,
Lutz