Yes, really annoying when you've tediously found your material and the treeview resets itself.

Using the beta demo 2.46 benchmark scene with unmodified settings and no viewpoint change a FX 1800 got aprox. 1.15 Ms when it settled down compared to a 3.1 Ms with a Quadro 2000. The Q2000 has three times the CUDA cores and the rendering speed difference is aprox. 2.7x better. If you take into ...