I use a MacBook with an external monitor and keep the MacBook’s lid closed. When I want to go somewhere, I disconnect the MacBook from the display and stick it in my bag. But when I open the lid, the MacBook wakes up, and most of the time the icons that were on my Desktop are gone. The menubar and Dock are still around, just no icons. How do I bring them back? I’ve been restarting the MacBook every time, but that takes a while and isn’t so convenient.