TCS2017 supposedly has better support for hi-res monitors. In the meantime, you might try adjusting the properties of your RH2015 shortcut - there's a flag in there that might have some impact.
Thanks for your quick response Jeff
I tried marking the "Disable display scaling on high DPI settings" check box on the Compatibility tab of the shortcut's properties dialog box, if that's what you meant, but that had no affect. I didn't see any other relevant options.
I know you can manually enter switches to the Target property on the Shortcut tab of the properties option as well (we do that on the shortcuts for the software we develop) but I have no idea what that might be if there are any for Adobe applications.
The TCS 2017 changes do not affect RoboHelp. The only solution I have seen
posted is the Disable Display settings and whilst the person posting that
claimed it worked, it didn't for me.