I'm having a problem with the AdvancedDataGrid andHierachicalData. I have an HTTPService that is getting data from anXML file off the server. I have a comboBox that changes which datais currently displayed in an advancedDataGrid. The problem is thatwhen I choose a different item in the comboBox the data is notchanging in the advancedDataGrid. I'm using HierachicalData andsetting it's source to the comboBox's data. Everything else on thepage is updating fine when I change the comboBox. Any idea w...