Nautilus not auto-refreshing

[Brian Mury]

I'm running FC2 with Gnome 2.6.

Nautilus used to automatically refresh windows when files were
changed/created/deleted. It stopped doing this a while ago.

Anyone know where to look to troubleshoot this? IIRC, it uses fam to
tell it when to update - which isn't running on my machine. Here's what
happens when I try to run it:

~> fam -d
fam[5558]: log level is LOG_DEBUG
fam[5558]: must be superuser
~> su -
Password:
[root at localhost root]# fam -d
fam[5556]: log level is LOG_DEBUG
fam[5556]: read /etc/fam.conf line 13: "insecure_compatibility" = "false"
fam[5556]: read /etc/fam.conf line 20: "untrusted_user" = "nobody"
fam[5556]: read /etc/fam.conf line 28: "local_only" = "false"
fam[5556]: read /etc/fam.conf line 35: "xtab_verification" = "true"
fam[5556]: Setting untrusted-user to "nobody" (uid: 99, gid: 99)
Cannot register service: RPC: Unable to receive; errno = Connection refused
fam[5556]: can't register with portmapper.
[root at localhost root]#
                                                                                Any suggestions?