The most anwers to your question you can find in FAQ.
For support you can use our Support forum. Where is special section for our customers.

FREE version without watermark, now!

You can use FurryBall for NON-Commercial use like final render, now. For FREE!

FurryBall 4.7 on GTC 2014

Speech and Live demo on Notebook
NVIDIA GTC 2014

A Struck Of Luck

Carlos Ortega - Making of tutorial in FurryBall 3
Original image 6000x10000 px

FurryBall Benchmark

New High Raytrace Benchmark scene and page
You can compare your GPU with others