Yes, I could do that. The problem just is, that when I enable the page load option, I get a "server error" when I enter the SobiPro submission form. Not on any other pages but only on the submission form.
I have tested every field and can conclude that it is a conflict with the text-area field. I use JCE editor and it is only when this is set. So the conflict is with the JCE editor.
It is strange and I have no idea about why. Do you?