It started when I was trying out different GTD solutions for my iBook. I went through Midnight Inbox, Actiontastic and iGTD in an effort to decide which solution would be the best for me. Now I think it should be important to note that all those apps feature iCal calendar syncing. Midnight Inbox was too buggy, Actiontastic wasn't as full featured as I wanted and so I decided on iGTD. I then uninstalled Midnight Inbox and Actiontastic and started using iGTD. Now here's the problem. iCal now creates calendars based on the contexts of iGTD every minute or so. Even if I unregister iGTD from Sync Services in the iGTD preferences window, the problem continues. Uninstalling iGTD doesn't work. Trashing iGTD and iCal preference files did nothing as well. New iCal calendars are still created every minute or so. I have a suspicion that it has something to do with Sync Services. Any thoughts or recommendations, anyone?
Try this: 1. Quit iCal 2. Move the contents of ~/Library/Application Support/iCal to another location. 3. Open iCal and check if something still syncs every minute. The problem might be orphaned entries in the syncState.plist.