And I'll bet any amount of money by your description you did not update your Radio... when you go from a Froyo ROM to a Gingerbread ROM you need to update your Radio to a Gingerbread Radio... go to http://forums.androidcentral.com/thunderbolt-rooting-roms-hacks/97307-guide-upgrade-mr2-compatible-rom-radio-mr1-after-root.html... follow the direction to update your Radio... I'd suggest starting with the Official MR2 radio.