I am having a similar problem. Was running ICS 4.0.3 w/Euphoria without issue until this morning. Got a couple of errors after a normal recharge. Pulled battery and rebooted, but is stuck in boot loop. Cannot access either recovery or fastboot screen. Vibrant logo flashes and release buttons, but never enters mode. Then cycles to Android screen and would likely stay there until battery died. This is primary phone and need to put back into service quickly. Any assistance will be greatly appreciated. Thanks.
JIM in FLA