Hello, I installed Vista on my Mac using parallels a few months ago. I used it to run internet explorer, which was required for a project at work. I haven't used it for a few months. Today I ran Parallels to log into Vista... and upon logging in Vista basically said I hadn't activated the software yet. Which is false, I entered the Vista product key upon original installation of Parallels. Anyways, I then tried to enter the product key for Vista again, but it said that the product key was already in use! Which makes sense because I had already entered it a few months ago to make it run on my laptop in the first place! I'm guessing it has something to do with updates I ran on Mountain Lion? Just speculation. Does anyone know what's causing this issue and how to fix it?