every reboot screws up my network

[Bruce Bowler]

Running 11.04 and every time I reboot, resolv.conf gets screwed up.  I've 
tried a couple of different things, but none of them works...

1) changed the IPv4 settings from network tools to do "automatic (dhcp) 
addressed only" and set the DNS servers and Search domains appropriately.  

2) modified /etc/resolv.conf/resolv.conf.d/head to specify the appropriate 
search and nameserver directives

After a reboot /etc/resolv.conf is no longer a symlink and does not 
contain any nameserver entries (it does have the proper search directive).

I can manually re-establish the symlink and things work properly, but 
that's obviously not a viable long term solution...

Any ideas?

Thanks!
Bruce