How to stop screen from resizing my window??

[Philip Hallstrom]

Hi all -

I connect to a FreeBSD server from OSX (via iTerm).  I then start up 
screen.

And it resizes my windows to 80 characters wide.  This doesn't happen on 
linux.

My understanding is this has something to do with the termcap entry and 
'WS', but as far as I can tell that isn't being set anywhere.

Also the -A option to screen doesn't seem to do anything either.

Anyone have any ideas?  Googling for "screen resize window" doesn't get me 
very far :(

-philip