Network: not found problem

[dh]

I have been having a problem as of late with programs not running at 
startup. When I finally goto to my local startup directory and call the 
scripts directly I get an error of: "Network: not found". I can ping 
properly out to the Internet, traceroute etc. The only firewall I have 
on my box is IPF version 3.4.35 . Sudoing and also SUing produce the 
same error message. More specifically I am getting the error message the 
ports package 'milter-greylist'. I have also got this error message from 
other programs in the past; although off the top of my head I can't 
think of what these binaries are. This leads me to believe that it is 
some esoteric network config issue.

-Thank you in advance for your suggestions