Hello. I recently discovered that my webdings, wingdings, and foreign fonts would not come up correctly in a text box, i kept getting abc/123 standard instead of characters. I researched threads for a fix, and found a ton of confusing articles and not really anything concrete. I went to deviantart.com and found a pack of 90+ wingding brushes, here is the address:

deviantART: More Like 90+ Wingding Gimp Brushes by ~njsitebuilder

Hope these work for you! best of luck