Icons won't stay on second screen desktop after installation of Mojave
After installing Mojave, I can't get desktop icons to 'stick' to my second screen. The side screen will show open windows. If I drag an icon for a file or folder to the second screen, it slips right back to the main screen. Please help. (There are certain file icons I prefer to keep on my second screen.)
iMac (Retina 5K, 27-inch, 2017), macOS Mojave (10.14.1), SyncMaster Samsung side monitor