Pretty self explanatory, i have been using my physx card whenever i get the chance for years now and with nvidia assimilatin the drivers into the display control panel i have had to slowly take extra steps to get the ageia physx control panel and options to work.

Today i upgraded to the 197.xx release and completely lost any option to do with ageia, and have not noticed my cards fan and lights turn on like they do when the card is being used.