I previously owned a Palm Pixi Plus on AT&T and switched to a Pre 2 while still on AT&T and just put my old SIM card in it. Now I recently switched to T-Mobile and I can't delete the AT&T numbers. Some give me a message saying I can't delete SIM contacts and some don't say anything when I delete them, but when I go back to the contacts list, they are still there. Does anyone have any ideas? This isn't a 2.2.4 problem because it happened on 2.1 as well.