It still looks yellow-green to me. I even tried switching the output from YUV to RGB, as someone on another board said worked for him a few versions ago, and it still looks the same. (BTW, if you switch to RGB, then the component output won't work -- unless you actually have a professional monitor or an old computer workstation monitor that's actually RGB instead of YUV, even though the plugs for YUV are still colored red green and blue.)
This green problem is the damnedest thing I've ever encountered in a digital device! First, if you're connected to the composite output and you have the receiver in an HD mode, the screen that it puts up on the composite output in SD that says it can't display anything DOESN'T have the green tint! Second, on the other board I mentioned, the owner says that he's tested the composite output on a wide range of monitors and TVs, and it looks green on some and fine on others -- in fact, he had more that were fine than were green! Third, I had to drag out an analog monitor to test it, because when I tried it on my digital monitor with analog inputs, it came up MONOCHROME!
(There is probably a clue somewhere in all that, but I don't have an oscilloscope or a waveform monitor or anything, let alone time to bother with it, and besides, NOBODY disputes that the problem was introduced with a certain firmware update, so it's mystifying that the developers don't know what they did!)