Just to complete the information, buzzes from AC cable's box - can't remember its english name - comes and go, it's not always there.
And I was able to write 2 DVD's after a clean new installation of win7. I thought it had gone. But it was just 2! Now I can not burn no more. I have done another new fresh installation. Nothing changes. Either I chose the wrong writing speed, either my cd is of poor quality, either Power Calibration Error. :mad:
Maybe power stability could be the origin of another kind of problem: I experience a kind of huge flickering on the screen. If I turn the frequence down to 40hz, the flickering stops - or I can't notice it due to low freq.
Anyway I will send it for a repairing as soon as possible.
