Well, I have tried every remedy offered on the Adobe website. None of them worked. I tried uninstalling and then re-installing CS3. That failed with a very informative message “Instal failed”. Great. Big help Adobe. I spent thousands on this software and have been out of commission for a couple of months now. Adobe support is completely worthless. They have done nothing but direct me to the remedies on their website which do not work. I am investigating small claims court to get my money back. BOYCOTT ADOBE. This is bullshit!!