Why Google Notifier keeps asking for keychain password?

Hi, Dear all:
I have google notifier installed upon my mac. It works fine, except it prompts "Google Notifier wants to use the "login" keychain - please enter the keychain password" every time I login...

I don't understand why google notifier wants me to authorize itself to use the keychain. Should it access the keychain automatically?

I have checked my keychains access; it seems the attribute of item "Google Service: Google Notifier" has the correct password if I click 'show password'.

What should I do to stop this annoying prompts?

Thanks!!

regards
ye