Problems connecting to wireless network

Hi,

I just recently bought a MBP and I'm trying to connect to my wireless network at home. It picks up the one at work immediately. When I try the one at home it detects the router but will not allow me to connect after entering my password. The strange thing is when I flip over to XP the internet works just fine.

Any ideas?

In osx, type the dollar sign before your password (eg: $mypass).

cheers.