O.K. After working with it all Labor Day Weekend, I have to hand it to the Eovia team. This software is right there in stability an usability with software made by much larger companies like Adobe. I think Eovia has puled it off completely. Even the none recommended OpenGL that has not been finished yet runs very well in my system. I can not express how satisfied I am with this upgrade. They not only added more stuff, they cleaned up the interface and optimized the code and squashed the bugs. I have only encountered one bug, if you are using the Area rendering Tool with Global Illumination, you can not cancel de rendering. But this is very minor compared with bugs like having it hang importing a texture Map, that I sill experienced in 2.0