Unable to link Apple ID with User Account in Lion 10.7.3
Hiho, 

again I solved my own problem... error was related to some weirdo ACL problem of the keychain directory/files in ~/Library/Keychains . I got the hint from console showing 

"*ERROR:password_store_mac.cc(263)] Keychain data load failed: 100013*" 

when starting Chrome and this error ID is related to permissions.


  Chmod -RN 


did the trick. Takeaway: Don't use finder to manipulate permissions. ;-)

Cheers
Roland