Hi Gary ,
Thank you for your money-back offer. I think your decoder did the job. I've seen that the problem is not specific to my old box , so no need for returning it back. I'll try the automatic software upgrade ( I actually started it yesterday , but have cancelled it before finishing ). I thought that a software upgrade from Digiturk might be the cause of the problem.
Do you think that it might be possible that Digiturk is the cause of this problem ?