Normally, I'd have an idea why something wouldn't work (lack of updates; skinning too far; playing in the registry), but this has left me stumped.
I have, however, observed that Audacity is not the problem, XP is. I actually installed both Audacity 1.2 and 1.3.x Beta, and neither work. Then, when I create a new, blank user account, Audacity loads up just fine. Another thing I've noticed is that the program itself does in fact load, even letting you open an audio file via Ctrl+O.
