I own a Nvidia Quadro 750XGL While running Acad2004 w/ two Samsung Syncmaster 213t Monitors on a Dell Dimension 4600. The problem I'm having is when inerting blocks or copy w/ multiple option the dispalyed geometry that I'm copying or inserting is jumpy and "sticks" as I move the cursor across the screen. I have the 77.56 driver installed for the video card...TIA...Fred