I have recently started using the RF modulator on my 622 to watch the output from both TV1 and TV2 through a tuner card in my PC. When watching TV1 on both RF and composite outputs, I have noticed that the image is not quite centered, with a fairly obvious black bar on the left side of the picture. The image is centered correctly on the TV2 output. Is there some way to adjust the image centering on the composite/RF outputs? The HD outputs look just fine on both component and HDMI.