Getting combobox to display values in a form in Word 2003

Ok, this one should be simple, I know, but I just cannot figure it out.

I have a form in Word 2003 which has a couple of combo boxes on it. I want these combo boxes to have a list of values for the user to select from. This list is static and doesn't need to be pulled from elsewhere.

How on earth do I get the list of values into the combo box?

One is called "DocType" and the other "Category". I have tried code like this:

With Me.Category
        .AddItem ("Bible")
etc

and it doesn't work, no error, just no values.

If I can get this working I'll be very happy :)

Thanks
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