For some reason, I cannot get edrawings 2017 to allow Pan, Zoom, Rotate on Surface Pro 4 in Tablet Mode. I have the app on my iphone and can manipulate the same assembly file anyway I want with my finger. For whatever reason it's unresponsive on my surface pro unless I have it out of tablet mode and use a mouse or the track pad. Any idea why this is? I've searched for a couple hours online but haven't found an answer.