Are you having trouble with your parameter windows in Crystal Reports? Did your calendar control stop working? Are the “OK” and “Cancel” buttons not responding?

I just got a note from Adam Butt of APB Reports in Trondheim, Norway.  Apparently he was experiencing these problems and worked for hours to try and solve it. He went as far as uninstalling and reinstalling his entire CR product suite, including several versions. Only when that didn’t work did he realize that he had recently changed his Internet Explorer Security setting to “High”. Changing it back to “Medium High” resolved the problem. I will have to do some testing to see which of the underlying IE security settings breaks CR parameters. But I am posting this now for others who might run into this problem, or a similar problem, with parameters.