Install or enter serial number in extended trial window
Last fall I downloaded a trial version of Photoshop CS5.1 for use in a class. I just purchased Photoshop CS5 Extended for educators and opted to receive a disc at home rather than downloading the program as I haven't always had good luck with downloads. But, when I tried to close the trial version on my MacBook Pro, a window pops up saying, "Your trial has expired. It's easy to convert your trial to the full version now by purchasing a serial number and entering it inot your trial software. Buy Now."
Should I simply enter my new serial number rather than installing the program using the disc that was shipped to me?