Working in ID CC 2015 on Yosemite 10.10.5. Have just one monitor. Problem just started less than a week ago and only occurs in InDesign, but is intermittent. When I click on a line of text two to three of times (like to select the entire line/or graph) the working area in InDesign "flashes" to all gray and the page and artwork disappear for a moment. Sometimes it last maybe a second...or sometimes it just flashes to gray and comes right back.
Any ideas on why this might happen? I would think it's the graphics card except it's limited to ID and clicking on type. This happens inside the ID working space only, not to the desktop that is visible around the workspace.