RHFB Touch screen or video card problem

HI,

one of touchscreen of my RHFB, has sometimes a pink coloration ......

I have invert the touch screen connection inside..and the problem appears on the other screen.......so it's not a touch screen problem

To disconnect and reconnect the 2 video card output had no effect

it's a "random" problem .....

Can you help me

RH was built in April 2010
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