When you launch a CS3 product, Acrobat 8, or Photoshop Elements 6, on Mac OS 10, a blank screen for registration appears.
An error "Registration - Connection Failure" is encountered when you attempt to register the software.

The registration service was shut down when the ability to register software titles on http://www.adobe.com/ was added.
For information on how to locate, and register Adobe software titles see Find my serial number.