Have you uninstalled the existing CS3 and installed the new non-activation CS3?
I haven't. Where can I download the non activation?
Follow the steps here under Sign In To Begin
The first thing it asks you to do is enter your CS3 serial number so have that handy.
You'll then be given a new non-activation CS3 serial number plus a new link to download the non-activation version of CS3.
I uninstalled adobe CS3, got a new activation code and downloaded the version of CS3. I install the new version and am never asked to input the new activation code and when I open CS3, it says I need to activate it again. I try and get a connection error, again. After that, I uninstalled again, used the cleaner program and shut down overnight. I re-installed the CS3 I downloaded from the Adobe web site and still get an activation/connection error. Please, please, please, help!!!
Ken, there is 1 more step (after the uninstall, prior to reinstall) that you need to carry out that worked for me;
Delete cache.db file from Program Files (x86)/Common Files/Adobe/Adobe PCD/cache/
After installing from the new CS3 installer, I was asked for my new serial code and then was told "Registration - Connection Failure". This is registration not activation so I clicked "Never Register" and my CS3 has now successfully started.