I am selecting pages, entering page 3, and printing. Now let me clarify this, sometimes I can be working for over an hour before this starts to happen. It just happened again today. Acro 8 was working fine, I was able to combine 8 pdfs into 1 pdf and still print from the single pdf, then the next time I combined 8 pdfs into 1 and tried to print page 3 from the single pdf, acro told me that this document could not be printed. I shut down acro 8 and reboot my machine and it still does it. This is happening on a mac pro with intel and leopard os. Acrto 8.1.0