I have all kinds of sync problems and bad data with my iCal, Address Book and Entourage on one of my computers, a MacBook Pro. Here is how to completely wipe out corrupt databases. First I should read my own post from last year
Apple – Support – Discussions – How do I completely reset iCal? …
How do I completely reset iCal? I want a really clean startup situation as if iCal has never run on this account. I tried:
rm -rf ~/Library/{Caches,Caches/Metadata,Preferences,Application\ Support}/*iCal*
Apple – Support – Discussions – How do I completely reset iCal? …
That will have missed the copy calendar data in ~/Library/Application Support/SyncServices
Reset iCal and Entourage | Tongfamily Website
There is another database called ~/Library/Calendars which is your list of all calendar data.
Reset iCal and Entourage | Tongfamily Website
So you have to go to Entourage Account Settings and delete the offending accounts and reinstall. Also delete in ~/Library/Microsoft all the Entourage databases and for the new Entourage 2004 they are in ~/Documents/Microsoft User Data/
Apple – Support – Discussions – Need to reset/reinstall address book …
The data files for the Address Book are found at Home/Library/Application Support/AddressBook. In that folder there are older versions of the AB data — you might check to see if AddressX altered all of them, or not. For example you could delete AddressBook.data, rename AddressBook.data.previous to be merely AddressBook.data and try launching the application.
Apple – Support – Discussions – Need to reset/reinstall address book …
The candidates, found at Home/Library/Preferences, in likely order of importance to this problem are: com.apple.AddressBook.plist, com.apple.AddressBook.abd.plist and AddressBookMe.plist.