Recently I had to change my domain password. I did, and used the new password all day, logging in to various services using it.
I then rebooted the machine, and when I can to login to the machine using the new password I couldn't. After a lot of playing around I discovered that it was because my new password had the " character (Shift-2 on my keyboard) but when I pressed Shift-2 at the login screen I was getting the @ character and had to use Shift-' to get the ". This behaviour happens when I get to the login screen after a reboot, but not when the machine locks after I have logged in. Once I'm logged the first time in I can login subsequently using Shift-2.
So how can in ensure that the windows 7 login screen is using the same keyboard scheme as when I log in? (I think login screen is en-us and main windows is en-uk)