Automatically convert post titles on-the-fly, using Kroc Camen's port of John Gruber's title case.
The original version was written by John Gruber for use on his site, Daring Fireball. David Gouch then wrote a Javascript port, which improved on the original script by handling some edge cases. Kroc Camen then ported it to PHP. Finally, Ryan McCue (that's me) wrote the WordPress adaptation.
Confused yet? :)
If the bug is a WordPress specific bug, contact me via my website. If the bug is to do with title-casing itself, contact Kroc Camen.