just to confirm on the Infinite black levels test...I used the all black slide on an SD card...switched my picture setting to VIVID, closed the menu and the panel should shut off? Actually shut off (as in the red power light goes off) or just appears to turn off? Displaying the black photo in VIVID mode doesn't actually turn my TV off, and after I close the menu, I can still tell the TV is on. When I physically turn the TV off at this point, the screen does really go "black". From the sounds of it, I have at least the infinite black problem.
46G10, Oct 2009 build. 1.28 fw (updated from ?? the first time I turned the TV on...)