Audio stutter after 10.7.2 upgrade

I've just upgraded my Mac Mini 2010 from Lion 10.7.1 to 10.7.2. Never have had any problems with audio and/or video. For some reason when I now play audio (in iTunes, VLC or whatever player from music or video file) or even listen to the OS animated sounds, the Sound stutters (so bad you can't really hear anything). What is going wrong?
My Mac Mini has always been connected via HDMI to a Samung HT and from there on to a Samsung TV. No change in configuration besides software upgrade!?
Running Windows in Bootcamp, audio works fine, so it is definitely new OS related!?

Check to see if the settings in Midi Audio Setup have changed.
I have updated my 2010 and haven't had any issues. However,
my set up is different as my Mini goes to a receiver and then
the receiver routes video to TV.
Have you tried a PRAM reset? May or may not help. I am
seeing in the 10.7 forum some other threads where peoples
HDMI audio has been borked.
If you you have a Time Machine backup or clone, you could
roll back to before the update.

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