Good morning!
I've downloaded and installed v2.3.0.42 and I seem to be having the same basic problem with the checkbox list being visible in a modal dialog.
I've tried playing around with the .DisplayInline and .Zindex, but the dropdown (inline) list of check box items does not display at all. I will continue to work with it to see if I can get it to work.
Also, in order to work around the problem before this updated version, I set .DisplayInline = True when I create the frame in the dialog, and .DisplayInline = False before I close the dialog. This process used to work before I installed v2.3.0.42.
Is there a .Zindex property associated with the dropdown list of checkbox items? I didn't see one in the DOM explorer.
Thanks for your continued help.
Scott