Hello Glenn,
Thanks for your response. I have tried taking a duplicate Distiller.prf file from one of my coworkers machines, but it didn't work.
I will try your suggestion and see if there's any difference.
This really isn't a huge problem, just an inconvenience mostly. I was hoping there was some easy fix (like deleting the prefs file) and that would fix it, but it's not turning out that way.
I do like the fact that in Quark, when you set up a file to distill a PDF the way you want it, it retains that information, as opposed to other programs, where if you do custom settings, they're lost when you distill the next file.
Thanks again, Glenn.