@pagan 

I mean on this forum and others. I found a dusin of other people who also was in my shoes. :)

i have never heard of other on my school who have had that problem.

-JRR

Thank you!!!!!!!

You saved my life :)

Thank you!!!!!!!

You saved my life :)

The problem is i can't find the problem. I am already trying to fix it with an xml editor, but with no luck.

Can anybody look at it for me?

matematik_input.txt

The problem is i can't find the problem. I am already trying to fix it with an xml editor, but with no luck.

Can anybody look at it for me?

matematik_input.txt