I want to be able to use Adobe Reader or Acrobat Professional to print collated copies of documents. I have an HP 1320n LaserJet printer. Whether or not I choose "Collated" in the print dialog, I do not get collated copies. I ONLY have this problem when using Adobe Reader or Acrobat. If I use Preview, I get collated copies fine. If I use other applications to print collated copies, it works fine. I have tested this on two computers, using Adobe Reader versions 5 through 9. I have also gone through everything HP technical support can suggest -- Obviously, the latest HP driver is installed. I am using Mac OS 10.4.11.