I tried the scaling.reg manifest solution and no luck.
E. Scaling.reg and .manifest file
We've seen this option resolve size issues in Microsoft Dynamics GP to include fields in GP windows that were smaller than normal, as well as a GP login window that was showing smaller than normal.
1. On this laptop where Microsoft Dynamics GP is installed, save this text to a file called "Scaling.reg" and save changes.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\SideBySide]
"PreferExternalManifest"=dword:00000001
2. Once you have created the Scaling.reg file, make a backup of the Windows Registry on the workstation or server, then double-click on this .reg file to import it into the Windows Registry on this machine where Dynamics GP is installed.
3. Next, download this file named “Dynamics.exe.manifest”, from the following link:
Dynamics.exe.manifest
4. Copy this Dynamics.exe.manifest file to the directory where Microsoft Dynamics GP is installed onto, such as the default C:\Program Files (x86)\Microsoft Dynamics\GP##\ directory, on the workstation or server.
5. Restart this workstation or server where you copied this Dynamics.exe.manifest file onto.
6. Launch Microsoft Dynamics GP again on this same machine, and have the users verify whether or not the display and/or font issues within Microsoft Dynamics GP now look correct or not.
**NOTE: We've seen this solution also work with RDWeb and RemoteApp implementations as well as RDS connections.