I have my Samsung VCR hooked to one of the composite inputs of my Sharp TV. My problem is, the TV won't stay in stretch mode. It will actually bounce back and forth between side bar and stretch by itself. If I leave it on side bar mode, it will sometimes bounce to stretch and bounce back and vise versa. Component and HDMI don't have this problem. Anyone have a fix for this? Please Help! I have lots of VHS I'd like to watch with this TV!