Chris,
Ive done all that, and several times... nothing helped.
I finally managed to update to 0424 by quickly trying to click install after loading the install page, in a game like way, because the window kept resizing and repositioning the button...
After updating, MPD was disabled, never had that before.

ive still to manage to play any track, because of unresponsiveness of MM, and it loading the defaults again

cheers,
M
What Marius is experiencing here is a case of the browser not sending the variables to the server, the server has returned "-1" for the source and version not the selected firmware version and source. As mentioned before you should try rebooting the BDP, refresh the page and try again.
Cheers
Chris