Yup, where I work we have a CLP License (Corporate Licensing Plan???) which seems to activate an infinite number of seats. Needless to say us in IT keep this close by and would not date let it out in the open.

I'm not sure if it logs the IPs from which activation is initiated, but it's one license for ~450 Macs.

Adobe screwed up, here are the gory details:

http://www.adobe.com/support/techdocs/331943.html

If they put as much energy in porting their stuff to Intel than they do to come up with obnoxious "copy protection" annoyances, they'd be far better off.

BTW, in the darker alleys of the net, it is obviously a corporate version stripped by Adobe of most of these problems that circulates.
Oh how very efficient: Pissing off paying customers yet unable to stop pirate copies.

This is almost always the case. These DRM schemes end up frustrating the good customers, but hardly ever deter the real pirates. I would be surprised if you cannot purchase CS2 for $10 at a street corner in Asia.

Have you by any chance followed Adobe's instructions for uninstalling CS2? It's a royal PITA but I've had problems with CS2 similar to the ones you report and have completed removed CS2 following the instructions, rebooted, started Disk Utility and ran the "Repair Disk Permissions" voodoo, rebooted again, then installed CS2 all over, and somehow it all magically worked again.

I can't find my bookmark to the uninstall instructions, and they seem to be mysteriously hid on Adobe's site. Try using Google with the "site:www.adobe.com Manual Uninstall CS2" and you just might be able to locate it.