If you find that a window or popup is not available in Quickmap 8, it may be that the Window is off the side of the screen. The software should manage this to prevent this from happening so if Quickmap windows are unavailable, this is probably due to a different issue, but for the sake of making the information available, here is where the registry settings are for the position / location of the various forms / windows used in Quickmap:

Computer\HKEY_CURRENT_USER\SOFTWARE\Custom Software\QMap\Forms