Greetings. I teach in a program that uses both Linux and Mac laptops. About a year ago video input stopped working ('High Sierra' version or before, apparently.) I'm told it's no longer working on Windows either. My colleague has suggested it's because enhanced security in the OS is guarded about which devices can access a given piece of software and Pd/GEM isn't asking for permission correctly, so a camera never shows up as an input device. Is this possible? We're using Pd 0.49.4 and Gem 0.93.3. Is there a known method of getting a live video camera input for the Mac? It works fine on Linux. Thank you for any assistance. -Dana Moser