I installed the GM on a few test laptops prior to release to make sure it works ok with certain apps. Now that release is out and I want to upgrade my main macpro (and pay for it), the app store shows that it is "Installed" already. Obviously its not since I'm on 10.6. I wonder if it saw that I had it on another laptop associated with my apple ID already and marked it as installed? If so, it's odd that it would mark as installed on my desktop. Anyone else have this issue?