I just came here to say screw you for locking me out of Parallels and forcing me to re-enter my account info, just because you updated your terms agreement. I needed to quickly launch my Windows virtual machine today but was blocked from running it. I thought I had paid for a product that I would be allowed to run on my Macbook when I need it, however I now understand that you are using the software-as-a-service model, and can change the rules of usage whenever you want. You made my decision to move to VirtualBox much easier. Thank you.