When I go to enable FeatureWorks in the Solidworks 2016 dialogue box the check mark clicks just fine, and then I hit okay. After that FeatureWorks does not show up in the Insert menu at all. When I check the Add-Ins dialogue again, Feature works has mysteriously checked itself, and I'm not sure why. I've tried restarting the program between checks, loading different step files, and all different combinations of checking "Enable" vs "Start-Up". I'm not sure what's going wrong. Any insight would be appreciated.