well pals thanks..no one so far could point out what is it..I by not accepting the situation..(you saw that I run 64 bits? and that is the main problem here..what did not occur me at the very moment  I wrote) 
I decide to unistal the Video enhancement driver from the motherboard as well the Ati Video driver to my graphic card Ati Radeon.
So Poser starts to funcition normal as nothing had happened.
Now, I did instal again the Ati Driver only it. No adicional diver for the motherboard concern to video (mobo it a based Nvidia chip and my graphic card is a Ati radeon !) All peaches but ..but.. BUT...the resolution is not okay..it's looking cheap VGA card almost as no driver is instaled....
so I'm back to square one..and worst.....can't remenber waht I did when that happend last time...cause it's not the first time I format same system.
Any enlightment form you guys will be always extremelly helpfull..since I trust you more thatn any others in the net...because you also use Poser..
thanks

"'you shut up!  or I'll bring democracy to your country! "
Cris Galvão aka Softcris  - www.crisgalvao.com
(or softcris, SoftCris)
Rendering since 1997 and
at Renderosity since 1999.
OS Win 8.1     64 bit