Networking and sygate personal Firewall

I have a few computers linked together on a network and since I installed sygate's personal firewall I can't seem to connect to another computer ... the link on the network hangs and never shows me the shared files (like it was prior to the firewall's installation)
...btw every computer have sygate on it

then I tried to check what application sygate was blocking that was causing this but I cant figure out what application I should allow access thru the firewall.
can anyone help me on this... any clues on the application name or service?
So far the only thing thats working out for me is shutting down sygate on them.

I have 2 win2000 Pro and one NT station and before I could share files between them easily.

Vince

 

Look up the ports on Microsoft's website for UNC shares.