Hi Giaguara,
Many thanks for your help.
You are right, when I tilt the screen the color changes and flickering appear and disappear. The greyish shadows stay independent of the screen angle.
I attach a screenshot which shows the shadows and some ghosting but the flickering and color...
My screen is changing colors, flickering and showing greyish areas in the lower part of the screen, depending on the position of the screen.
How do I find out what exactly is the problem and what part to replace (eg LCD, inverter board, etc)?
Thanks