Then why even mention !popuptheme, which has nothing to do with Omar's LS distro at all (save Austerity, which you did not specify)?
If !popup doesn't work, and a popup2-x is loaded, something is wrong. !popuptheme not working could be any number of issues with the theme in question.

Reinstalling Windows shouldn't be a solution to problems either, but often it's the best one.