The issue is that the drop downs on the form do not display all the values in the list. The menu displays either above or below the field and is truncating so the users are unable to see all the available values. Is there a way to make the drop downs overlay rest of the form? Tabbing through the values also seems to freeze the form all together.
Use tabs instead of panels and allow sufficient height (y-axis) for the form, e.g. 1000px.