I have seen many people clicking show desktop icon in quick launch. and then right clicking on desktop at different different places and clicking refresh... why ? for no reason ...just for time pass ;) fun.
Using PMW also you can do the same ( the timepass ;) fun )
1. Select any application and press Windows Key hold it and then press Left/Right Arrow ;)
2. Click any desktop icon and press Windows+Z ( the Boss Key) and see the magic ;)
( right click on tray icon and say Unhide)
Sphere: Related Content