hm... I have a client that has a HP OfficeJet 7140xi All-in-One printer, this printer works fine, except the fact that it will not print color on transparencies... it will print black on the transparencies, but not color, and will print hte same exact document (in color) on plain white paper, I have checked HP's site for help, made sure of all the settings, and done everything I know... anyone got suggestions???