To add your own Background Image simply (from CompuHost's main menu) on the top menu bar select File->System Devices and Options
(From the CompuHost Setup Menu) "under Performers Display Settings" select the button Optional Background Image
"Check the Box" to Activate a Background Image and Select Locate Image
Once the Image is loaded simply Click "OK" on the Optional Bakground Image Setup Screen (as displayed above) and Click "Save and Exit" from the CompuHost Setup Menu.
IMPORTANT NOTE: Please be reminded that after selecting the image you may need to restart CompuHost before the "new" Background image will display
Example Image (Before and After) ...
NOTE: The image above (on the left) displays an example of the "before image" Default CompuHost Background Image (as provided with the initial Installation of the Software) and (on the right) the "after image" displaying a "Custom Background Image" (as added following Steps 1 -> 4 above)