Got a unlocked Telus Motorola Milestone off Ebay about 2 weeks ago. Been working on AT&T and I loved it. This morning... no data. It was just NOT working. Put the sim in another device, same drill. Got on chat with a AT&T employee... no go. Went to the local store, new sim, still no. Employees sim card... no. Finally we played with the APN settings and some mobile web sites kinda work using proxy settings, but not full ones. Basically... I'm screaming inside. While troubleshooting this morning, I factory-reset my milestone. Would factory resetting "lock" it again? Or once you carrier unlock, is it unlocked for good? Sorry if that's a dopey question. It's been a long and crappy day off.