After upgrading to 10.5.2, I have found that it is impossible to launch iSync, from either the dock or the Applications folder. iSync will do one bounce on the dock, and no more, then disappear. I have repaired permissions by booting up with the Leopard disc. I have created another account and logged into that account. Here's where it gets interesting. Only users without my account name can run iSync! I can create as many permutations of users, and they can all run the application, but as soon as a user has MY name as an account name, I can't launch iSync! How bizarre!!! iSync refuses to launch on any account with my name What the heck?! Does it know me by name? Any thoughts? I'm completely miffed and searched this board, not finding a whole lot. Some people seem to have experienced the same issue with iCal as well, though. I have a Macbook 2.0 CD2. I am running standard Mac OS X 10.5 + iLife '08 + iWork '08.