When I open preview the desktop background becomes dark with the selected image. The dock is not visible unless I hover over where it is normally present. There is no menu bar. The only way I can get the desktop back to normal is command Q. Any ideas?
When I open Preview or click on a icon of a picture in the Finder window the desktop become dark. The picture is opened but there is no dock or menu bar to work with. The only way to get the desktop back to "normal" is to command Q. Any suggestions?