When I step through the Pro E print manager menu and hit print, it shuts down Pro E and the printer doesn't print the drawing. I receive no error message from either Pro E or the HP print menu. I am able to print drawings to my HP LaserJet 5000 Series printer with no problems, but for some reason the HP 1220C will not. I have tried uninstalling and reinstalling printer drivers, have connected with both a parrallel cable and USB, and have renamed the config.pro file so that the session doesn't try to read it just in case there is something in that file that doesn't configure correctly with this model printer. If there is anyone that can suggest something, I would appreciate it. I have been in contact with PTC tech support and their suggestions have not resolved the problem.