Why do InDesign pages often not become active while a Microsoft Word .doc/.docx file is open on my other screen? I cannot click to activate InDesign pages unless I press Command + Tab, and then not always. InDesign only becomes active again if the Word doc is hidden in the Dock or closed. Sometimes they will work together OK for a while after both programmes are closed and the computer is restarted. I work on a 27in iMac with a 27in Mac screen on the side, and the OS is OS X 10.9.5. My Word programme is Word for Mac 2011 and InDesign is InDesign CC 2015.