I just purchased a MacBook Pro with 10.6.3 installed. I did a clean install of all my apps and everything works except for Adobe CS 3 Web Suite. After I install the application everything works, but a day or so later I get an error when launching an Adobe app that the licensing has stopped working and the app closes. I called Adobe and their answer is that they are not supporting CS 3 on OS 10.6.3. I either have to downgrade my OS or purchase $800 worth of upgrades to CS 5.
I checked on the Adobe site and other posts. It looks like there may be a problem with my system serial number which is only 11 characters. Adobe says CS 3 is looking for a 12 character system serial number.