Hi Ken,
Nope, my software won't crash. You just won't see the Radar Contact menu.
Since for the most part, responses to controller instructions are 'Acknowledge' or 'Acknowledge and Contact' (with Acknowledge and Contact simplifying the exchange), I suppose it would be possible to essentially memorize response choices for each phase of flight thus not needing the menus.
VR is my top priority enhancement following release. I'll keep the community apprised of progress and may ask for assistance with testing.
Stay tuned.
Regards,
Karl