Printing with P3 into Acrobat 5.0 PDF Writer

Hi there

I use two P3 licenses.

With the license at the office (which is on a network), I often print into Acrobat PDF Writer without ever any problem.

With the license on the site, (which is local) I get an error message and the software (P3) closes and I have to re-start the computer, every time I try to print.
Somebody who had had that problem solved it by making Acrobat Writer the default printer before opening P3. I tried that without any success.

Can anybody help me with that?

Thanks in advance