Since I upgraded to Lion I can't use iChat on my 2.2ghz i7 MacBook Pro. Simply won't log on. Tried deleting the account and adding it again but nothing. It's a Mac.com account.
It works ok on my Mini.
I'm up to date with 10.7.2
How do I set up Screen Sharing so I can log into my Mac Mini at home when I'm on my MacBook Pro at work? I can easily do it when both computers are on the same local network, but can't work it out from longer distances...