Upgrade to Redhat 7.1/Windows causes Samba/Windows98 Failure

I had a good system running at home. It was a dual homed linux box running 7.0 with one side connecting to a Windows98
box.

I had everything working until I decided to upgrade the Windows98 box to the latest patches and upgraded the Redhat box
to 7.1.
I am using the same smb.conf file as I used before, but now I can't browse the network (using explorer) on my Windows
box.

Does anyone have a clue as to what I need to change in the smb.conf file?

Stephen