Hi Lina, MoI uses DirectX.

Nothing has really changed in that 3D navigation for quite a while...

There is an older Jun-12 beta that you could try to see if it runs better: http://moi3d.com/beta/moi_Jun-12-2007_setup.exe

On the ATI driver page, I noticed that driver version 7.8 was released just last week. Maybe there is a problem with this newest driver version, you might want to try one of the older drivers from here:
http://ati.amd.com/support/drivers/xp/radeonxprevious-xp.html .

- Michael