After updating to 10.6.2 I’ve been running into some keychain issues, receiving errors like this one pretty much every time I try and save an item to my Keychain:
Keychain “login” cannot be found to store “login”
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Thankfully the fix is pretty simple.
Open your Applications folder.
Then go to Utilities.
Open up Keychain Access.
Click Keychain Access in your navigation bar, and select Keychain First Aid.
Run the Repair function.
Then run the Verify function.
That should fix things.