Hi, I had the following problem when trying to configure my HP Deskjet 3420 printer for Mac OS X: Before I installed anything, I plugged the printer to the USB port. Mac OS X inmediately recognized the printer and I was able to print black and white documents without problem. The only problem I had was that color images wouldn't print correctly. Trying to solve the color printing problem, I decided to install the driver and utility software the comes with the printer. I thought maybe these drivers would solve the problem. That's when everything broke. Now, when I try to add the printer, it shows up in the applet, but with the following message: "driver not installed". I've tried everything including reinstalling the drivers, but nothing seems to work. What gives?