Updated to 7.3 yesterday. Worked ok on my desktop but the graphics card is not up to it for the video builder. So I installed 7.3 on my new christmas laptop with a good graphics card but it will not accept the emailed key. Goes into a loop where it says key successfully registered loaded but the key does not stick, it loops back to evaluation copy. Do I need to install an earlier version first with its key (not sure where it is)before this one to fix it or what?