I've just bought a reconditioned iMac to replace my old Power PC G5 & have got nearly everything up and running, except my HP Laserjet 2200DN printer. Apple suppplys the printer driver and automatically installs it. However when I try to add the printer via Preferences > Print & Scan > Add Printer, Add button is grayed out. Therefore I can't locate the printer driver even though it has been correctly installed. I've messed around with HP Direct Protocol & Line Daemon functions in this same window, entering my IP address, just to see if the printer driver could be located - it could. However, I get a pop-up window which says 'Unable to verify the printer on your network' but it gives me the option of going ahead anyway. I was able to create a print queue, able to give a print command, the printer window opens, but the printer is 'busy', but of course it hasn't been given the command to print anything. Apple lists this particular printer as HP Laserjet 2200, minus the DN, so I don't know if that suffix is significant enough to make the printer incompatible... some ideas to fix this problem would be hugely appreciated.