Keyrite Upgrade Installation Problem

[orzelw]

I had Keyrite 1.400 installed and had been using it since this past summer. Then I decided to check for an upgrade, through the Help menu. (I had already checked on and successfully downloaded and installed upgrades for Microstudio and Karaoke Home Producer.) There was an upgrade available, so I downloaded it and ran the installation. The installation wizard indicated it installed successfully. But when I tried starting the program, I got the popup error message, "Your serial number does not match your registration information. Please reinstall Keyrite and try again." So I did. Same results. Then I went to the MTU Support Center and attempted to log in. It gives me the screen saying, "Invalid login info." So here I am, trying the back door.