I just upgraded my system to XP and had to download the XP GeForce 2 most recent driver for it, called the Detonator. I was prepared to remove the faulty nvopengl.dll again, when to my surprise I couldn't find it. I opened Vue and started a scene and was pleasantly surprised to see the fragmented, work space of old, when I opened a few items and moved them around and found that solid shaded primatives didn't break down. I'm hoping that the bug is a thing of the past now, knock on wood. I never dreamed that upgrading my operating system and downloading new drivers would provide such a boon.