Question Author
I hadn't, but now I have - it's now in the same workgroup as the host pc (the one running Win 7)
However, when I added the workgroup I also took the opportunity to change the virtual machine name to something more meaningful
Now I have BOTH the old name AND the new name in my list of networked computers - but I get an access error when I try to browse either of them
"Windows cannot access \\pcname - check the spelling or there might be a network problem"
Phil G