The GIMPWin-FAQ has some info about a crash while loading fonts:
"People reported that a font called "Profont" causes this. Try
removing the font."
http://www2.arnes.si/~sopjsimo/gimp/faq.html
I do not know whether you have this font, but it might help.
Greetings,
Martijn
http://gimp.pagina.nl