I seriously doubt it would be caused by a 3d program, they mostly use standard windows fonts if they use them at all. Adobe Software, esp. PM, is more likely a problem, as it can use postscript fonts (and the notoriously buggy on windows ATM -adobe type manager-), more likely to cause trouble. As far as system software, 3D software generally uses Direct3d or OpenGL, neither of which has anything to do with printing. FWIW, I have Max, World Construction Set, Poser, PS6, Illustrator, Bryce, on my Wn2k machine, connected to an NT4 Server Domain (with other NT4/Win2k/MacOS9/X machines), and print to an HP Laser Writer and Apple Laser writer with no trouble. By the way, what is the point of "loading one, then waiting a week?" If a program is going to cause a network printing problem, I can't think of any reason it would take a week to cause it (Standard trouble shooting would be load the program, print from it, see if printing is still working normally, then try another program;-). Good luck!