I'm a new user of 1Password for Mac, so apologies if an answer has been provided--I couldn't find one. Using latest Apple operating system OS X 10.9.1 and 1Password V4.1. Vanguard is a 2 page log-in. Manually, when I enter user name and password, it works perfectly. Through 1Password, it rejects user name and password. Error message on both pages is something like: "The password entered is incorrect. Please reenter your password." Yet I know the user name or password saved in 1Password is correct. Any help you can provide is appreciated. Thanks!