mysterious and annoying arrow symbol
Does anyone have any idea what this disembodied arrow symbol is, or why it's hanging around on my desktop? It moves to the edge of the screen when I click on the wallpaper to reveal desktop, hinding in the translucent grey border around the edge of my screen. It then pops back again when I click the desktop again. My sincere wish is that it would disappear forever. Does anyone have any ideas how to remove it?
Mac mini