My MacBook is brand new and MobileMe doesn't work with it. iDisk shows up under devices but is unusable. When I click it a dialog box appears saying that I need to set up .Mac because it's not set up yet. But it IS set up! When I go to System Prefs and click .Mac it shows that I am logged in and I can click on the tabs for Sync, iDisk, and Back to My Mac. I'm on Leopard 10.5.2 and cannot update to 10.5.4 because I understand 10.5.4 has problems with Skype video, which I need to be able to use. Has anyone else encountered this problem? I haven't encountered it on any other Macs - even worked fine on a machine running Panther! So probably nothing an update would solve anyway. It's hella lame though.