Adobe refuses to answer an e-mail question about this. Instead I am referred to the web site, where (for CS) only Intel processors are listed. This includes Pentium IV, which is equivalent to the above Athlon. I can find no information about CS.
Preparation for my XP installation is coming along, slowly. What a &*#^%@)!!! nuisance. Next I figure out what to do with 3,000 or so e-mails.
Thanks, everyone.
Joe