First thing I'd do is reinstall Acrobat. It's Acrobat that handles the "print to PDf" commend, not the OS. It's possible that the upgrade broke the necessary links to proper print drivers.
I have already reinstalled Acrobat. There is actually a thread in the Acrobat forum that I am following on this topic. It appears that Snow Leopard has indeed changed the way printers are set up. It looks like they have disabled the ability to print to PDF in all programs. Save As or Export to PDF both still work, but do not really help me with what I am trying to do.
Here is the work around!
Print the file to a .ps and run it directly through Distiller you will need to give Distiller your password.
That suggest to me that the problem is that distiller needs to pass word in order to save the file anywhere and not be able to do so without the password it just sends it back to the system after completing the distilling when you try to print to pdf.
Here is two of the four pages I got from my experiment
Not ideal work flow when you are doing a lot of them but much the same we are all use to doing it in the past.
Most important it is a way.
Thank you. That worked exactly the way I want.