Just an FYI for everyone:
I found a problem where some people weren't getting a demo properly due to a problem where hardware from one computer too closely resembled hardware from another. The problem should resolved in the latest version (1.30 build 18011.479) released today, however there are two caveats:
(1) all free users will be getting a new demo -- enjoy it!

(2) if you're a premium user, you may need to go to Help -> Licensing, and click 'Done' to re-license your installation
Please let me know if you have any problems or questions!