apt-get problem

[Michael Scottaline]

I just installed ubuntu 4.10 today.  Easy, fast install that found all
of the laptops hardware and configured everything properly.  Bravo!!
At work I access the net via our T3 line using a proxy server.  this
may be the reason I don't seem to be able to access any of the apt-get
repositories via gnome-terminal.  I've configured synaptic and my
browsers for the proxy server and clicked on desktop configure network
to add proxy servers there, but still get failures for each of the
repositories apt-get tries to access.
Any suggestions???
Mike
-- 
"Many loads of beer were brought.  What disorder, whoring, 
fighting, killing, and dreadful idolatry took place there."
-Baltasar Rusow, mid 16th century, Estonia