How can i fix gimp so it will open?

When ever i try loading gimp it goes to the loading screen and stops on brushes, i deleted all the brushes i had, i have no Fonts installed for it and so when i close it it says (not responding) so i have to click "end now" it closes, but wont open. i have no viruses or stuff of that sort, i deleted it and re installed multiple times but it just wont open. Can anyone out there help? My computer is a 32 bit windows xp with SP3 installed. i don't have any other programs open when i try using it so... i have no idea.