New Post: DateTimePicker popup size

I am using VS2015 Community, .net 4.6 on Windows 10.

I did insert the above copied code into a separate project and, you're right, it worked just fine! BTW, I did remove the duplicate settings; thanks for checking that.

Now I have to figure out what there is about my usage of the control in my particular project that causes the problem. Do you have any suggestions on where to begin looking?

Thanks for the help.