I got the standalone trial version to work. According to Markbass, the thing to do is not to install tpkd. or to remove it if it is installed. I found that if you update tpkd, that works as well, but you have to download it from the site in my post #10 above. Best to try Markbass' way first. BTW, I have an old (2006) XP computer, so if you have Vista or a Mac, I can't be of much help. Also I use Firefox, so whatever problem Clifton has, I can't help with either. From installing it for a friend, I found protools to be such a pain that I never bought it for my own computer. My needs are pretty small, so Audacity works fine for any recording I want to do.