Since the release of iSync 1.4, we've covered various reports of sync problems after installation. MacFixIt reader Russell Read reports an issue -- and its solution -- affecting the syncing of specific calendars:
"I had previously set up iSync to sync only certain selected calendars. After updating to iSync 1.4, on the next sync, my Palm T3's Calendars were completely blank. Information was still in iCal, Mac.com, etc. In the Palm section of the iSync window, Sync selected calendars was still selected, but none of my calendars had a checkmark to be selected. Rechecking the appropriate ones resulted in a successful sync and continues to do so. I never had a problem with Addressbook, installation, etc."