Well... another test i've do. I've take a complex image (10 sec animation) and i've render with vue 4 professional on my workstation: i've do it in 8 hours (approx.) After i've take the same scene and i've render it not stand alone on workstation, but on rendercow with 3 workstations on the network (my workstation plus another two with the same CPU and RAM): i've do it in 18 hours !!! Is rendercow made for speedup render? I am much displeased. Bye xman