It happens about once a day. The phone will seem to latch onto the Edge network and not let go, even though I should be solidly in 3G territory. I work in the building next door to T-Mobile's Tampa HQ, so I get a solid 4 bar signal all day, and it's definitely 3G, but I seem to have to reboot my phone every morning to get it to go into 3G mode. Anybody have any suggestions?