Hello, I've just acquired as back-up (while I get to grips with a flat-screen) a Bush DVD VCR combi. For some reason I can't get the VCR timed recording functions to work; I can't get to that function, to the green square to get it to flash, if that makes sense. I can go up the line of green squares until it by-passes the timed recording. If I make any sense, do you know why that should be? Many thanks!