Oracle Forms

I am having trouble with a Radio Group in my form-with-table.

Simple Form-With-Table.
Radio buttons control ORDER BY clause for the query.

The form works perfect as-long-as the user clicks radio button FIRST,
but default form behavior is not working correctly.

General idea::

Using a standard form with table / query.
There is one radio group, with 2 radio buttons.

The radio buttons simply control the ORDER BY clause of the query.
Button: SORT_BY_NAME - Value: NAME
Button: SORT_BY_PATTERN - Value: PATTERN
Radio Group Initial Value: NAME

My problem is that when user "open the form" and run straight query, the default is PATTERN.
No radio button is pressed. Query just automatically sorts by PATTERN, even though I want default NAME.

How can I change the default ORDER BY to NAME?
Or, how can I change form to Automatically-Click the NAME button when opened?

Thanks in advance for your help