Hi chaps, I've just realised that every time I turn on my 504 - using the power buttons on the screen and media box - I have to set the clock. I've been disconnecting it from the mains a lot recently while setting up the screen and components, so I didn't take much notice. Now I've realised that it happens when the mains is always on, but I switch on and off using the power buttons. This can't be right can it? Has anyone else experienced this problem? Regards, Mat.