I’m not sure, but Mudbox generally does not like ATI. In fact, most professional 3D products are going to favor Nvidia hardware because its what most of us use and trust due to historic events and the quality of Nvidia hardware & drivers, as well as the contributions of SGI’s engineers that switched over to Nvidia early on. They know OpenGL inside and out, because they invented it.

Basically, Nvidia is just better for what we do. That is probably not what you want to hear, but i think you will find less problems with Nvidia.

I would not expect a change but I think you can get it working. It’s just hard to offer advice, because most of us are not familiar with ATI and mudbox.

I have heard of people having issues with black objects in viewports. I recommend searching the forums, if you havent already. I just cant think of the solution off hand. Again its tough because most of us rely on Nvidia.

As of writing this the search function appears to not be working. I’m trying to search myself as i recall some discussion on ati and mudbox in the past. Unfortunately search seems dead.

Google…

site:area.autodesk.com/forum/autodesk-mudbox <search terms here>

Returns 5 pages of results (for “black objects") - no idea if any of them are relevent though ;)