Wow, I hate to hear that too! I'm running a MAC g3 and Carrara with very few bug issues. Make sure that your system isn't looking for ATI and Open GL 3D extensions at the same time. Also, If you're using ATI products check to see if you are using the latest extensions offered by ATI at ATI.com Hope that you get it to work. It's an outstanding 1.0 release. Mark