I don't know why this happened suddenly. I am on a shared family plan. I have been downloading applications and music just fine until a couple of days ago. When I click Install and it asks for the iTunes password, it's my husband's account that is showing up! There's no way for me to click on the account to change it. Anyone know what happened? Would it have anything to do with starting to use MobileMe recently? Please tell me how to fix it. Thanks. ETA: It's fixed. I signed in to itunes while phone was plugged in. Does this mean I have to be signed in to itunes before I eject my phone? Thanks.