Win Y2K & OpenGL games

When I play an opengl game under winy2k my screens moves about 2cm to the right.
This only happens with OpenGL games. It has something to do with the screen refresh rate, but I can’t find a setting to alter this for opengl.
I have geforce 2 gts and Iiyama VM 450 Pro and run under WinY2K Pro.
How can I solve this?

I think you should change your monitors setting. With my video+monitor, I have to center the screen with each seperate resolution. There should be a couple of buttons below the screen. You can adjust things with these buttons.

I have the same problem when I run an OpenGL game in the same resolution as my desktop.
Direct3D games run well because I can alter the refresh rate setting for those games in DirectX setup.