I have a form where you use the autocomplete box to choose a value. As long as you mouse-click the value or TAB to another field, it seems like everything works fine. But if you fully type the entire value of something in the list and then click on another field and start typing over there, it seems like the value in the autocomplete field just isn't really picked up. My "required field" logic kicks in as if you left it blank.
I am admittedly on autocomplete version 1.0.1 so if this is something that is fixed in a later version, just let me know... -- Kendric Beachey