Whenever I load C-Cell I get the error message: 'Please check/connect the Protection Device at the printer port' There are two reasons why this message may appear, these are: The Dongle is not connected. Please connect and retry C-Cell. A suitable Dongle driver is not installed. If this is the case you can find a Dongle driver set-up program in the 'Dongle' folder, this will be in the location where you started the application. The set-up program is called 'setupx86.exe' Installing the Dongle Driver Load the 'setupx86.exe' file located in the <application root folder>\dongle folder. From the menu bar select Functions --> Install Sentinel Driver. Click the OK button (you do not need to specify the Sentinel Files Path yourself. You will then get a message 'Driver Installed!’ The dongle driver is now installed. C-Cell is producing a distorted/incorrect image. How do I solve this? This could be due to a loose cable from the C-Cell cabinet to the computer. Close the C-Cell software, and then make sure all of the cables are correctly connected before you run C-Cell again. How do I know if one of the lamps has failed? The lamp cover at each side of the C-Cell cabinet has vents and it is easy to see if the lamps are still operating. Also the live image on the screen will be dramatically different. The calibration procedure will not be successful if a lamp has failed. See ‘C-Cell Lamp Replacement Procedure’ in the MAINTENANCE section of the operation manual.