Hi Feldon, thanks for the answer.
I have passed a couple of hours installing and unistalling device drivers and now everything is updated to the latest available drivers. Unfortunately the problem is still here, but I think I have understood what is causing it.
My second display is a 7" USB monitor from Samsung, they call it UbiSync Monitor (
http://www.engadget.com/2008/01/07/h...7-ubisync-lcd/), when I disable the USB monitor MA3 works perfectly, but as soon as I re-enable it ... blank screen.
I have tried to configure MA3 to ignore the second monitor but it does not change the result, blank screen.
What could I try ?
Andrea