We are trying to upgrade from 8.0 to 8.1 in our test environment. When we go onto the NSA to install in pre-upgrade, the Admin Log shows "Installation Complete", whereas the Status shows Not Installed. We are given the Continue button and can got to the Database Install section, but the same thing happens. We press install, everything indicates that the installation took place, but the status shows Not Installed. We are not given the option to move forward from there.