Please i'm new in windows 7... (really i don't use vista neither)

We use Firebird 1.5 with XP as server without any problem... with several XP and vista PC as clients.

Now, we changed the XP server for a new WINDOWS 7 and... troubles.

Locally it work fine, but all the clients fail connecting.
No firewall, no antivirus, no windows defender... but still fail.
Im looking in diferent threads about this, and they sugest about IPCName change to Global\FIREBIRD but not enough, because the probles stay...

Please somebody gimme a clue (or a thread with answer).
We try to upgrade to 2.1, but the problem is SAME...
please some light...

Tks
Alejandro