WIN7 Enterprise Doesn't See Open Shares On WHS

Hello. I rent a room in a house where I have setup a (WHS) Windows Home Server
I have WIN7 Home Premium running as well as one of my neighbors. Another person
has WIN7 Ultimate running. We all get to see open shares on the WHS except for the one person that has WIN7 Enterprise running.

Is there anything different about WIN7 Enterprise that would stop it from seeing the same open shares?

Just guesses, but since there were no other replies:

Are you sure he is logged into the same workgroup?

Also Control Panel\Network&Sharing Center ... change advanced sharing settings. Make sure “Turn On Network Discovery” is selected.