If you get this error while Installing the program from a CD, before the 
Installation finishes, it is because you had previously installed the 
Downloadable version on the same system. Either the Demo or the Registered 
version. You would need to first remove the Downloaded Software before you can
install the CD version. However, there is no good reason to do this, because 
the Downloaded version is usually newer than the CD version. 
So the moral of the story is:

If you have the demo version installed and you bought the Boxed version
because you wanted the Samples, do not try to install the main program again.
Simply open the RP_DLX program > Help > About and Register with your License /
Product ID in order to Unlock it.  
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