Dear friends prometheus mosaic ^^
I was sent a message at support and the first answer was the 19 Jan 2013.
Few messages later who doesn't help, (the best troll message was: "please install the latest for resolve the problem", lol this patch 2625 just resolve youtube problem)
After, they send me a message the 16/03/2013 with: "thank you very much for your information regarding your problem. The behaviour you describe has been forwarded to our development department. We will release a patch that fixes this problem as soon as possible."
And now i see, power dvd 13, you kidding, the 12 not working... and i instal today the free demo power dvd 13 , same mosaic/artefacts!!!
From the beginning I have the feeling of being taken for an idiot.
I expect that the problem lying around since long months will be resolved and I hope something offered