Hi to all that replied.
I am still getting nowhere. As far as I can tell, there does seem to be some procedure that will re-activate the passenger window, all I know is that it may end with holding the button for ten seconds when the procedure is finished but I don't know what the procedure is. I have tried searching for the subject but there only seems to be about 600 or so messages left on my news server and the ones that match the search are no help.
I am an electronics engineer and have checked for the obvious things and there is no reason why it should not work which leaves a computer fault as the most likely problem.
Please help.
Cheers.
Jerry.