Restore the machine to factory settings and then upgrade it to ultimate. The quickplay will just work.
i just got a new hp pavilion dv9500 cto laptop. i've been using it for a few days on vista home premium and the quickplay buttons worked ok but now i've formatted the pc and put on vista ultimate. I have installed hp quick buttons and the mute on/off button, sound control buttons and stop/play/next/previous buttons work. However my quickplay buttons (DVD and Quickplay) do not seem to work. I cant find anywhere to set them to work. Any ideas?