I am going to scream. What in the heck does this mean? I have scads of RAM. I have scads of drive space, and yet, frickin' Parallels STILL will not run on my MacPro. I don't get it. It runs fine on my macbook pro, but it hates this machine and gives that error constantly. I have yet to see anything from parallels support as to why this happens and how to fix it. right now, this product is unusable for me and I'm very frustrated.