F8 Network Woe

Dear List,

I have a vanilla FC8 machine that was working into the Internet.  After
several hours fighting network manager, I edited /etc/hosts, /etc/resolv.conf
and /etc/sysconfig/network-scripts/ifcfg-eth0 by hand and bob was my uncle.

Now, after a a PUP run to pull in updates, I can't get the network to start
after the reboot:

   # service network start
   Bringing up loopack interface:           [  OK  ]
   Bringing up interface eth0:              [FAILED]
   Error, some other host already uses address 192.168.1.6

Any ideas ?

Jonathan