Here are the steps we took to resolve your display issues:
1. Right click on your Desktop and select Display Settings
2. Set "Scale and layout" to 100%. Setting this to a percentage larger than 100% is what causes display issues in Caselle
3. Make the Resolution smaller instead to make all apps and icons larger on your computer. 1280x720 or 1600x900 should work well if your monitor was set to 1920x1080 but you can use whichever resolution you prefer
4. If you are on the Connect version of Caselle you can also use the Zoom setting here