Hi Vince,
Quick update – the monitor brightness is calibrated correctly on two new machines (the room I work in has about 20 monitors in total), but there seems no way of fixing any graphics card issue or other type of fault with the main batch of monitors I am working with.
I have now correctly re-calibrated the new monitors and will check all video material on this monitor, before using the others knowing that it really looks okay!
Bit of a pain, but unless you have any ideas I can’t find any alternatives.
Thanks again for your help,
Rob