Text not being displayed in GUI

I've had an issue for a few weeks where text/combo box data is not being displayed in the UI. I have to move the screen down below my taskbar and then up to have it refresh. Anyone know what is causing this?

ShipRush version : 9.6.0.54410
Program directory : C:\Program Files (x86)\Z-Firm LLC\ShipRush v9\
Shared Settings : c:\users\public\documents\Z-Firm LLC\ShipRush\
Private Settings : c:\users\public\documents\Z-Firm LLC\ShipRush\
Carrier : Stamps
Database (local file system): c:\users\public\documents\Z-Firm LLC\ShipRush\Database\
Order Manager DB (local): c:\users\public\documents\Z-Firm LLC\OrderManager\Database\
Template Auto Save Dir: c:\users\public\documents\Z-Firm LLC\ShipRush\MENU\MENU_Stamps\Auto-Saved-Templates