Ribbon Dropdown item reassignment

[Rajesh K]

Hi,
Problem with resetting selected item ...

I have a dropdown called X with, say two items "A", and "A_Advanced".
When the user selects A_Advanced, I want to
(a) check if the user has the advanced software
(b) throw up a dialog box saying he needs to get the advanced stuff.

(c) reset the dropdown selected item to A, back from A_Advanced.

It was easy for me to have a handler, X_OnAction, to do items (a) and (b)
but I don't know how to reset the selected item back to "A" .

This was extremely easy back in the old style command bar model but I don't
know how to do it in RibbonX.

Any help will be appreciated. I am missing some design philosophy here,
obviously.

Thanks
Rajesh