i have installed a GX Touch 50 for a customer and the colours are "grayed" out, there are no bright red, yellow, blue colours as i have seen in the past on other touch screens; i have reset the Cerbo GX to factory defaults by rebooting with a USB stick and the unzipped file, but no luck; i ordered a new GX Touch 50, but have the same problem, so i figured it was the Cerbo GX, but no luck there either, would really appreciate some help on this one :-)