Account field required for some users, not for others in URM when checking in content

I am running into a real show stopper.  I have been working in our development database, and have tested checking in content multiple times with no problems.  I recently turned it over to my users to begin testing and they can not even check in one document, because they receive an error stating that the account is required.  I know just enough to be dangerous, so I am not quite sure how to solve this one.  It makes no sense to me that on my check in screen, account is not required and yet on all of my users check in screens, not only is it required, but nothing