Thanks to all for your time and patience in helping me solving my problem.
I m very grateful.

@BragginsBill
Thanks for providing me with all your great stuff and your advices.
Poser is now a different ball game and nothing would have been possible without you.
On a side note, VSS works better for me with lower Gamma Correction settings (closer to 1)
with higher ones, RMC is now overlit.
Last, advertise loud and clear when your book is out. we don't want to miss it.

@Vestmann
Thanks for all the info especially all the step by step guidance.
That was crucial, I couldn't have done without it.
Also, you seem to be a very nice person.

@IsaoShi
Thanks for dividing my render time by 3 or 4

@Hborre
Thanks for your timely and precise interventions