At first i want to say that I'm sorry for my cruel english

I am using OpenOffice for a long time now. Recently, i installed version 2.3.0(english). When i was working on a part of my exam, the OpenOffice Writer hung up every 10 to 40 Minutes. I didn't care - i simply saved my work a little more often as i was used to. But now, the Writer crashes every single time i open my work. I tried to deinstall and reinstall OpenOffice but it didn't work. 20 minutes ago, i installed the latest version 2.3.1, but it doesn't work too.
I hope that anybody can give me a tip what i can do. I think it could be a bug in OpenOffice, too. I will attach my document to this post so that you will be able to check this.
I'd be very happy if anyone would help me.
Thank you,
David