If you encounter graphic problems in Flux software while displaying colour shades for instance, you should check if the drivers of your graphic card are up-to-date. In order to do that, you have to execute the following procedure:
Open the Control Panel -> System and Security -> System. Click on Advanced system settings.
In the System Properties window go to the tab “Advanced” and click on Settings… in the section “Performance”.
In the Performance Options window select the tab “Advanced” and then click on Change… in the section “Virtual memory”.
In the “Virtual Memory” window unselect “Automatically manage paging file size for all drives” in order to be able to modify the memory values.