In their fine installation manual(!), PNY states that GeForce cards with VIVO need (must) have WDM drivers installed. This may sound totally ignorant, but I am not sure whether to install them on a PNY 7600 GS 512 MB card as it only has Video Out capabilities, but apparently does NOT have Video In capability. Any guidance is appreciated, as PNY support apparently finds the quetion too dumb to answer!