Thanks...I'm considering rooting and read the adb rooting method but looks like it would be ez to mess up a step and get in trouble. Maybe i'll try rooting my old Droid 1 first just for the practice.
Of course when you mess up Windows you can always reinstall. Is there really no way to fix a "bricked" thunderbolt?
But you can't do that to the phone by merely changing software can you?