Please make sure that you've updated your Viewer to the latest version 184.108.40.206 since we've added support for high DPI resolutions starting version 7 of Remote Utilities. The latest version 220.127.116.11 is available for download on this page or via the Self-Update feature.
In addition, please try the following: 1. Right-click on the Viewer launch icon and select Properties. 2. Navigate to the Compatibility tab and click the Change high DPI settings button. 3. In the opened window enable the Override high DPI scaling behavior checkbox: 4. Restart Viewer and see if this helped to resolve the issue.