Enabling Agent Forwarding on Mac OS X (and it's still not working)

Ok, so you've SSHd onto your favourite box, but when you try to connect to another linux server, it asks you for a password.
Huh? you say? It's ssupposed to use my private key!

First check if it's accessing the correct directory
#ssh server -l phil -v 
if the last few lines contain /root/.ssh/id_rsa or something similar

make sure those files exist

Also make sure in /etc/ssh_config
these lines exist

Host *
ForwardAgentYes

If this is still not working

on your mac run
#ssh-add

tada!