Thanks for the reply. When I make the form production, I will make it a hidden field. :o)
For testing purposes, its not hidden. So why do you think its not showing up after I publish the form. In preview mode (Design mode), it works fine.
The reason that I want to have a field that posts the current date and time and be hidden is because I want to call the field when the form is submitted and use it as part of the xml file name. This will create a unique identifier file name because the the file may be opened and and re-submitted and I don't want to overwrite the existing file.
Do you know of another way to do this? Maybe I should include the date time function in the formula for submitting. Will that work?