The last couple of years have seen the release of Hi-DPI displays primarily on laptops. The displays we have run into are typically running 3200x1900. This is something new to Windows and it causes problems with the menus and results areas of many programs including NetScanTools Pro.
To address this issue we added a new NetScanTools Pro Help/Preferences item called Menu and Left Panel Font Scaling. It gives you 6 options for scaling the text of those items.
However, we recently found out about another way to change the menu and left panel fonts under Windows 8.1. If you right click on the icon or link and select Properties you can select the Compatibility tab. Next check the box labeled 'Disable display scaling on high DPI settings'. This will fix the menu text and icons, but the results text may be too small. Fortunately there is an easy fix for this - go to Help/Preferences and press Change Font in the lower right corner - make the font larger than the default and you should have no problems reading the results areas in NetScanTools Pro.