Ok, thanks.
The funny thing is that the french escalations department can be reached only by postal mail (and don't bother to answer anyway). Angry customers can only phone to the Technical support, relocated in north africa, where under-paid techs are assaulted by frustrated people, and are unable to do anything, since they're supposed to diagnose problems and have no decision power.

nice organization...
Maybe that doesn't matter, since a tech manager told me: "escalations department is useless: they'll tell you to wait..."
It seems to me that they don't care, because they don't sell the 1730 anymore; so they let their customers down. Next time I take a Clevo