Activating my movie studio 15...says you have reached the maximum allowed number of simultaneously usable devices for this program...I made a email address Removed by Moderator. It didn't allow me to use my email...I have no password for the Removed by Moderator..Didnt register it in the magix center....REGISTERED IT IN THE SCREEN WERE IT SAYS SERIAL NUMBER AND EMAIL ADRESS...I have the serial number..please help me