I have 2 printers. 1 is an HP laserjet 3100 the other is an HP laserjet 4L. I am running Windows 2000. The 4L works fine until I install the 3100. As soon as the 3100 drivers/software is installed, then my 4L gives me the error: "error printing document to port LPT1". Does anybody recognize this problem, if so does anybody know how to fix it?