Thanks for the reply, Mylenium. Unfortunately, that didn't make any difference.
I first attempted to re-install the current version and got the message "Adobe Air already installed. This version of Adobe Air is already installed on your system."
Next, I un-installed the version on my computer, re-booted, then re-installed it. That didn't work either.
It appears that Adobe does not fully un-install products. I un-installed Photoshop Elements 10 and Lightroom 1.0, but I still see registry keys associated with those products. Is it possible that when I un-installed either those or CS2 that there is something left over that is preventing CS6 from working properly?