I've occasionally had the CDR executable hang on startup, but never on my Windows 10 field laptop(s), only on my Windows 7 desktop. It doesn't give behaviour identical to yours or Kent's experience, but might be related. For me, it hangs with no splash screen or other indications it's even started, but bringing up the task list with ctrl-alt-del shows the running process, and killing that allows it to start normally.
D. Patrick Ryan, P.Eng. - Graham Ryan Consulting Ltd.
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