[GD-Windows] set display mode - refresh rate problem

[Ivan-Assen I. <as...@ha...>]

Hello,

It turned out we do the wrong way something as simple as resolution switching,
enumerating the display modes at the desired resolution,
then switching to the last of them - which, if you have a good
videocard on a crappy non-configured monitor, results in
out of synch black screen.

I found something with Google about supplying 
ChangeDisplaySettings with "0" or "1" instead of hertz value
for the refresh rate, which supposedly sets some kind of "default",
but I can't find any official documentation on it.

How do you handle display mode switching?

regards,
Assen