Maybe these guys then Hilch.
http://audacity.sourceforge.net/help/
They have a forum and a wiki. I guarantee there will be some real expert dudes in there. Or just save all of your projects and then re-install it. (the universal fix for all things Windows, lol!) If you are installing a later version BTW, for example the latest 1.3 beta, it won't open your 1.2 projects.