169.21 is driver version of my 2 Nvidia 8800GTS
It's the same as yours . Still when turn to Sli using 1 of my monitors /HDMI connection
Poser runs odd and slow as PII with 256 MB Ram !!!Also the same with Vue6 (64 bits)

So just to make it clear - please what is that is not correct in here? Could it be a matter of Nvidia's Control Panel configuration?
HELP!!!

"'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