Hello I have a couple of HP LaserJet 4350n printer I am trying to install on a print server (Win 2003). After several attemps I continue to receive error: "The HP LaserJet 4250/4350/4240 Setup program has encountered a severe error and will now exit. Restart your computer and run Setup again. I had on problem installing a HP 4600DN and a Brother 2170W printers. Just the 4350s.