Maybe it is punkbuster that is pointing to that directory.
Consider that not only ET use Punkbuster as anti cheat tool, maybe another game installation and the new way to handle the user profile informations with windows 7 and sequels, did the mess.
Without take a look on your system, in particular about punkbuster and ET installation, it is hard to give you an explanation with a guess.
What's important is that you have solved the problem. I think you did, right? 🙂