Not even the survey works as it should

At question 11, regarding owned tablets/smartphones, if one leaves everything un-checked (which is my case, since I own only a Desktop) the survey doesn't get completed and is not sent.
 
NO, I did NOT upgrade to X2 Producer because I had expected a discount for existing Rapture customers.
 
And I also did NOT upgrade because:
- 120 € from X1 Producer to X2 Producer is too much (maybe also because of the above mentioned reason);
- Cakewalk is providing not enough info onto what's new (for instance a list of all the "hundreds of improvements").