I haven't changed my DA configuration...enabled SMB, AFP, and Rendezvous (AppleTalk also enabled in Network prefs). I can still connect by typing in the IP (not such a big deal as this is just a home network) but it's just odd that the Browse function used to work, and now it doesn't. Of course, after I connect using the IP, the volumes do show up in the network view, but that's a little redundant...
IMO, decent networking is the only thing I miss about Jaguar (and it wasn't that great even then).