Hi,
some additional information about the problem I told before:
It's a Twonky Server Problem. Twonky server v5.0.46 don't see the device automaticly. And - A BUG - I can not install the device manually (input MAC address + device type in config menue --> push Save --> device list is empty again!!!
So I now have reinstalled Twonky v4.4.6. This version sees the muvid and identifies it automaticly. And all mp3 plays fine.
So I think Twonky should bugfix this in the next version 5.
And - together with v4 - the muvid is a fine device. Quick response time, good graphical display. The only bad thing is that it has no FM-/DAB-antenna plug
Ciao
FHSalute