I am running gpe-calendar 0.73-21 (as labeled in the application manager), running the firmware before the latest (I have SDHC cards and the latest firmware appears to create problems for these cards, so I haven't updated to the latest firmware version) and when I close the calendar I get a dialog box with the text "library routine called out of sequence" and an OK button. Pressing the OK button only brings up the same diaglog box, endlessly. I have to reboot the tablet in order to get control back. Is this a version update issue? If there is a newer version of this app, and I don't have the latest firmware loaded, will it work?