Is is possible to disable nagging ad screens?

When I'm starting any X6 program, from time to time a nagging screen appears asking me to buy a premium membership.

Although there's a checkbox that reads something like "don't show this message again", it's impossible to check that control because the window closes immediately when the checkbox is clicked.

I've paid for CorelDRAW suite and believe that should be sufficient. So is it possible to disable these nagging screens?

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