Fence worked fine before setting up dual monitor.
But it blackens the screen every 5-30 minutes after the dual set up. At first it can be fixed by using refresh, but after a few weeks, clicking refresh only fixes the secondary monitor, will have to wait awhile then use refresh to fix the main monitor. Folders and fence still work, however it's very irritating.
Operating system : win10
The original desktop looks like
The blacken desktop looks like