I have heard that there are 4 extra pipelines that were disabled on a 6600GT based chipsets..is this true? if yes how can i enable them?

There are no extra pipelines to unlock on your card.

Google for "unlock 6600GT extra pipelines". you`ll see what I mean.

Regards Howard :) :)

yes, i figured that later, after run the riva tuner bat file tweak to unlock it but i realized that is for 6800!... :( it was late that night!