Control problem

I am using iTGE but thought I'd post in this forum since more users have iTGB. I would guess it is about the same.

I have a button that is using the multi-touch functions. I have the the TouchUp and TouchDown functions to turn the button on and off. The problem seems to be however that when I press the button and then move my finger to another point on the screen and lift my finger, the button never receives its TouchUp callback and stays on the 'TouchDown' state.