IN the past several days whenever I look at a model in Solidworks PDM tells me that preview is turned off. See screen clip below. As soon as I click on the preview it open the preview pane. PDM does not do this for PDF's, Word or Excel files. I, as well as my workmates have hunted for a setting to turn the preview on or off and have not found it. Any ideas? We are using SolidWorks 2016 SP.5.