Application Frame disappears offscreen, won't stay onscreen after I reset it.
I'm running Illustrator CC 2015 on a 27" iMac under Sierra 10.12.6. It has started the annoying behaviour of opening with the Application Frame fully off-screen. This post (Illustrator 2017 Application Frame opens offscreen on second monitor and i can't reset it to be fully onscreen ) helped me get it back by changing my resolution to reveal the frame and dragging it out to be maximized.
However, after quitting Illustrator it refuses to retain that screen setting. Each time it opens now with the Application Frame off-screen again.
Does anyone know how I can force Illustrator to keep the Application Frame on-screen from now on?
