I get this message when I try installing the software. No clue what might be causing it. Installed it on 2 other macs no problem. This one is a new MacBook Pro 13" (early 2011). I'm on my home network. And I removed the optical drive and replaced it with an SSD, so it has 2 drives. The boot drive is the SSD. I also upgraded the RAM to 8GB. Not sure if any of this makes a difference, but those are the only differences between the macs that I have that I was able to install them on and the one I wasn't.
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