Thnx for your reply enjay77,
my set is SS04 and currently my setup menu says 1007 (dec. 2007) (as already told, I could be 2009 but that I don't know).
Seems I have a a FRC-S board, at least according to the person I talked to, he said they used the FRC-S upgrade. So an other combination then you describe.
But do you see any improvement after the update?