I have a few suggestions, and I'm supposin' it'll be most efficacious to create a new thread for each, rather than include them all in a single post. If I'm wrong, please forgive the multiple posts - I'm happy to have the admins combine them after the face.
So, on to it then, eh?
When I open the dialog via "Test", the default file list is taken from My Documents. "My Documents" is displayed in the navigation ComboBox at the top of the window. When I click the arrow, suddenly the location changes to "Recent" and the file list now reflects the contents of "Recent"!! My first reaction is "OMG what have I done!"
This is not expected behavior. When the ComboBox is selected, it should display "My Documents" in its hierarchical path context, and NOT change the contents of the file list until and if something new is selected therein. I am hoping this new behavior is simply internal to the app.