I am trying to use the CA-1 color analyzer to get a decent gray scale on my Panny direct view HDTV. I doing service level settings, using AVIA through the component inputs. I can adjust red and blue gain just fine for bright windows. But for the low IRE end of the scale, changing the settings for green, red, and blue cut doesn't produce any changes in measured color temperature. So I have ended up with a gray scale that runs from about 4800 at 20 IRE to 9000 at 80 IRE, since I can't cool down the low IRE settings. Is there something funny about how the service level adjustments work on the Panny?