I bought the Pioneer DVR530 yesterday but I cannot get the aspect ratio to switch from 4:3. The sky box is plugged into the back of the pioneer into AV2 using a scart lead. AV1 plugs into the plasma controller box. Whenever you view sky through the recorder with the recorde on, the aspect doesnt change when you alter channels. If you turn the recorder off it works fine. Also when you exit the menu on the recorder it loses the signal altogether. Can someone please help?