I have created a simple database with a few related tables. I double clicked one of the fields in a Slide Control on a layout, expecting to get the 'Specify Field' dialog box. Instead I got a black dialog box, with some screen corruption and contents from elsewhere on my screen. See screen shot attached.
OS X 10.11.2, MacBook Pro (Retina, 15-inch, Early 2013), 16GB RAM, NVIDIA GeForce GT 650M 1024 MB