After installing a new copy of Windows 7 we can not type anything in the user name or password boxes on the login screen. The keyboard works during boot but will not tab from point to point on the login screen. Changing the keyboard to another USB port after boot does not have any effect.
The machine is configured to automatically log in to a standard account. Upon boot to Safe mode or Normal mode the screen displays "User name or password is incorrect" and locks out the keyboard input.
Any help would be appreciated.