Adobe Reader: No collated printout possible.

It is not possible to print collated copies with Adobe Reader from version 7.x and KPDL Classic Driver

Cause:
This is a known restriction of the Adobe Reader in combination with KPDL or Postscript Drivers.

Action:
The behaviour of Adobe Readercan be changed by editing a Registry Key. For further information, please refer to the following article in the Adobe Knowledge Base:

     http://www.adobe.com/cfusion/knowledgebase/index.cfm?id=327109