New test user just downloaded ... was running trial product

I ran into a locked up screen situation on your app and had to stop it. I'm on a Mac mini. Now I cannot get back in without a registration code.

I'd like to know this works before paying $29.99 or whatever it is.

Also, I reverted back to Kindle 1.31 from 1.35 using your utility but at some point, maybe after reregistering, it became 1.33. What gives? Any advice would be appreciated. Thanks!