I have Premier Elements 11 installed on my windows computer. I am trying to install it on my Apple Mack-book pro, but, it says my serial number (downloaded from Adobe) is invalid. I had no trouble with the photoshop elements installation.

I tried to install Premier Elements on my Macbook Pro using the downloaded serial number and get the message that the serial number is invalid. I had no problems with the Photoshop elements 11 download. I have both installed on my Windows desktop. would appreciate any advise. Jim