Why does my Pocket PC freeze up when I try to close Calc using Battery Pack 2003?
As far as we can tell there is a bug in Battery Pack 2003 version 5.1.1 such that when you close Calc by tap and hold on the “X” button or using the “X” button in the droplist of running applications, the command bar stops responding. Since you can no longer switch tasks or start applications you have to reset the device in order to continue. This problem also affects other applications as well as Calc. Versions 5.65 and later of Calc have a modification so that it is no longer affected by this problem.