here's a stretch... do you have any desktop publishing apps installed on that machine? i've seen strange font conflicts happen, but never in the ide... only in the layout app after adobe or corel decided to install their own version of fonts. the fonts don't even have to be the same name. i think if, by chance, they share an id number you get garbage renders or courier (default). it's a big problem in the publishing industry because there are a ton of foundries releasing their own versions of fonts.