I am having lots of problems getting Acrobat 6.0.x to work. Mac OS 10.3.t. I tried all versions and updated to the current version. When I go to advanced print setup and put in all my custom settings and then go to save the settings it asks for a name but it doesn't actually save anything. If I switch to the Adobe default and then back to my settings it changes them all back. On top of this when I hit the negative check box it updates the preview but does not change anything. When I go to print it doesn't print in negaitve either. I am using PPD files that I downloaded off of adobe's website so I don't see why it wouldn't work.