InfoPath Dev

I'm experiencing a wierd caching problem with a dropdown using an xml data source on my form. I updated the xml data file and created the data connection the dropdown continues to show an old value as the first value which no longer exists when i select a new value the cached value disappears but there is no roundtrip etc Solutions that ...

Could anyone explain how to add a new set of repeating controls (expression box + text box) to the repeating sectionThe form is based on  xsd schema. I have a Home Phone    Textbox as Expression box and Textbox repeating controls on the form these 2 controls are bound to  Contact and Contact Type fields when I click ...