F18 nss-mdns not providing .local zeroconf name resolution to applications

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http://forums.fedoraforum.org – I upgraded from F16 > F17 > F18 and now the nss-mdns does not seem to be working. 2 other F18 machines are working fine. The symptoms are: the machine's .local hostname is visible on all avahi service browsers the machine can browse and select avahi services, but the service fails to start when the the remote machine's local hostname cannot be resolved. the machine's ip address is resolved on all other local machines the machine's published services are accessible from all other local machines. the machine cannot resolve any .local ip addresses itself. I guessing that nss-mdns is not (HowTos)