The built-in formats, under Home | Multilevel List (in Word 2007 and later) or under Format | Bullets and Numbering (in Word 2003 and earlier), are user-specific and machine-specific; that is correct. In other words, these formats do not represent available number/bullet formatting in the current document. See also
http://wordmvp.com/FAQs/Numbering/Wo...gExplained.htm (which primarily applies to pre-Word 2007, though).