Ok, finally figured it out, read the WINDOWS ISSUES post again and succeeded in changing the Network Drive mapping. I now have music!
Two more questions though:
1) The Soundbridge and Firefly now show several old iTunes Playlists that I once had in iTunes, but since deleted, they are no longer valid, they are also empty. Where did FireFly find these? and more importantly how do I delete them (as the are no longer visible in iTunes and empty)?
2) This is probabaly a very silly question, but how do I just start playing (shuffling) my entire library on the Soundbridge, without selecting a(ny) Playlist first?
Thanks again
Gerbrand