Hereafter is a report from Gérôme.
A quick message to explain how to fix the issue affecting Mail and Address Book when running Snow Leopard.
Symptoms: multicolor rotating wheel when launching Mail or Contacts.
Solution :
1) Remove the following files: AddressBook-v22~.abcddb and AddressBook-v22.abcddb from the following folder ~/library/Application Support/AddressBook.
2) Remove all "intelligent/smart groups" from the Address book located in ~/library/Application Support/AddressBook/Metadata. Those groups are easily identified by their extension "ABSmartGroup.abcdg".
Once completed, Mail and Address Book will launch without any problem. Sure, you will have to redefine your smart groups, but it should not take so much time, and at least both applications are now working.
