This is odd. I signed up for a trial of .Mac several months ago, which expired, but I never deleted the icon from the top right of the screen. Today, I noticed that the icon was spinning as if it was backing up, which is odd, so I clicked it and it said nothing interesting (just "Open .Mac Sync Preferences"), so I ignored it. About 2 mins later, I got this popup: I have the latest version of Leopard and ran Software Update 2 days ago, so why would this message appear now, especially as I don't have a .Mac/Mobile Me account any more? It seems really odd. Has this happened to anyone else?