Question: A white box reappears and stays stuck on my MacBook Pro screen
I'm running macOS High Sierra 10.13.3 on a MacBook Pro Retina 13-inch. The white box below appears and even a restart can't get it to go away. What can I do? It's on the MacBook itself. The two external monitors I run stay clear and fine.
MacBook Pro with Retina display, macOS High Sierra (10.13.3), null