June,

It's hard to say what your particular problem is. If it is not too difficult, start by trying to recreate the form from scratch. This is what I typically do when things seem strange and the answers are hard to find. In many cases this does solve my problem and even though you might not find the answer, sometimes it better to solve the problem and move on, than to spend days trying to figure out something than might just be trivial.

Let me know how it goes.

Bob