InfoPath Dev

I am at wit's end with this problem!  It seems like it should be impossible, but when I submit a browser enabled form 50% of the time it works and the other 50% gives me an error.  All that the error says is "There has been an error while processing the form".  I have a hidden section that is only openable by a password (I set the conditional settings on an optional section to hide unless a text box equals my password).  I think that this section might be creating the error, but I really don't know why it only fails sometimes.  Any suggestions?

Could it be a timeout or connectivity issue?

You could make your section visible for debuging purposes.

Well, I did make the section visible and now my form submits fine.  I guess now it's just figuring out what in the hidden field makes the problem...  The section has a conditional formatting on it that tells it, if my field called "password" does not equal my password, then hide section.  How do I rearrange the rule to make it work this way, or is there another way to hide a section so that only the admin can view the field?