I have a Sony Ericsson C902 model. It is a brilliant phone and works slick. The only problem I am facing is that the phone’s backlight goes dim while talking. It doesn’t go off after sometime, as usually backlight goes off in every other phone I have used. This especially creates a problem when talking in dark. I know there must be some very fundamental functioning that I would have missed. Please advise whether it is actually possible to switch off the backlight.