<font color='#000000'>When I first got my rx2400 the display would start out bright and then dim after a few seconds. Then when I would change something (volume, input, surround program, etc...) it would go bright again and then dim out. I really like this, but recently it doesn't do it! The only thing I changed (I think) is that I did the YPAO. After I found the problem I went to the manual setup and found the dimmer setting. This changed the brightness of the display, but did not turn on/off the dimming effect. Anybody out there know what to do?</font>