There's a bug in the Updater that affects the graffiti (180g) models.

If you re-map the 'CALC' silkscreen button to another application, and then do a soft reset, the re-map changes back to the default Calc application.

I contacted Handspring, and they were able to duplicate the problem. So... until they come out with a patch to patch the patch I'm using EasyLaunch to re-map the calc button.