I discovered that switch between normal and full screen works fine, but then switches between full screen and normal does not work, that I've tested under Windows 7 Ultimate 32-bit. Net framework 2.0 and OpenTK 0.9.9.5 (1 Beta 2).
I added a program that shows this by pressing the F-12. It's a bug, it's my mistake?
Another problem is that the delta of the mouse wheel is not updated for negative values, normally should be between 1 and -1 but in the attached program only varies between 1 and 0.
Please any solution ...