Brian wrote:
There are a number of different brands, I belive I got one of the strangest ones... a Mitsubishi Multisync monitor that not even Windows knows what is (sadly though it's started to mess up and not all screenmodes work anymore, for instance 1024*768 works great in 24bit but if I want 16 or 8 bit I need to lower it to 800*600, weird stuff... dun ask). ;-)
Try setting a lower refresh rate. The smaller bitdepths require less from the ramdac, so they can be rendered with higher refreshes - perhaps the OS automatically increases the rate and it goes out of your display's spec.