Help!.. My dad recently got a mac and installed Microsoft Messenger. It wont sign in, the wheel just keeps spinning and then it says cant connect. I have now re-formatted my mac with Snow Leopard, installed Microsoft office and now *mine* wont connect either!! I thought it may be a firewall problem but we both have different routers (and live in different houses). I have also tried various versions of it to no avail! please help, this is one problem that has me beat.