To close the loop on the issue of BCC 3D Objects in 64 bit Mac, they are now available as a free update to all BCC 7 customers. Please download the BCC 7.03 update/trial version from our website at
nVidia Quadro 4700 is a supported card. Can you check if you are running the latest nVidia driver for Win7 and that card? Can you contact our support to further narrow down your problem?