Hi, We have five desktops running windows XP, as well as two Desktops running vista. and I have 2 printers ( HP Designjet 500 + HP Deskjet 1280) conected to win XP desktops. I am running AutoCAD 2006 and when connecting to the HP Designjet 500 plotter & HP Deskjet 1280 from the two desktop which are running Vista, it doesn’t appear anywhere in the plot screen and I can’t print. Both printers are shared correctly (Windows XP + Vista compatable). All the XP computers work fine running the same program and will print instantly. Also when printing to a shared HP Laserjet 1010, there is significant connection lag, It would be greatly appreciated if someone could help me out,,, Thanks for any help you might be able to give!