I have a problem now that I (finally) upgraded to Windows 10 on my development PC.

the Crystal XI studio runs and opens my reports, but most modifications to an existing or new report result in a GPF. Has anyone else seen this?

details: this causes a GPF on my development PC and also my laptop, both Windows 10;
Create and drop a textbox into the report (or) modify an existing textbox i.e. change "Run Date" to "Report Date"

(wishing I had not deleted my old OS data when I upgraded to Windows 10) - can't roll it back

Peter Donovan