I have a 2 year old HP running XP Media Edition with SP2. I have a 2.3 gig processor, 1 gig of RAM, and over 200 gig of open space on my hard drive. I use McAfee security suite version 7 and also separate anti-spyware. With or without the firewall on and other protection, pop-up blocker off, etc. it won't successfully download and install. I've also downloaded it to my PC and tried installing it from there with no success. Any solutions? I see on the Adobe site that many people have similar problems.