DVD-RW does not burn

Hi,

I recently got a new rig, 2.4 ghz duel core, 2 gigs of ram, nvidia 8800 GTS,
and a PIONEER DVR-212D DVD burner.. the last one is giving me a very annoying
problem.

I use itunes regularly, to listen to music and on my old computer, i used it
to create audio CD's, but for somereason on this vista PC i cannot burn. When
i try burning in itunes i get a message that says "Disc burner or software
not found...", when it try using windows media player to burn a cd, it
starts, but each song that tries burning fails to burn and i end up with a cd
that has empty tracks on it. When i use nero, it starts burning, but quickly
fails.

I recently updated to the most recent drivers for this device (version 1.21
i think), and this device should be compatible with vista. i don't know why
its not.

Any suggestion would be greatly appreciated!

thanks,

pat