List of printer drivers empty

Running SuSE 10.0 with KDE 3.5, I started to install my Konica-Minolta 2430DL network printer and got to the list of printer drivers (all there) and realized I had not installed the driver from CD. I installed the rpm driver from CD and then when I go back to install the printer, the list is empty. Perhaps I had the list up when I installed the driver, can't remember. Can someone tell me how I can get this list rebuilt? I am logged in as root. -- Robert