With nothing better to do on a Friday night (

), I decided to tinker around with my LD450's to see if I could replicate the "no 4:4:4" issue.
I dug out my old Windows Vista x64 with Nvidia 8800GT (DVI->HDMI, v178.24 drivers) computer and hooked it up to my LD450s. And it worked right off the bat and passed 4:4:4 beautifully; didn't even need to apply the EDID fix either. I used both HDMI1 and HDMI2 ports on the TV and image quality is identical.
I also upgraded my Win7 / ATI computer to the latest Catalyst drivers (v10.9 -> v10.11) and everything is fine too.
So... From what I've gathered so far -- panel sizes doesn't matter, firmware version doesn't matter, ati vs. nvidia doesn't matter (for me anyways), OS type doesn't matter, and we all have s-ips panel types -- so I have not the foggiest idea why some of you guys are failing 4:4:4.
The only thing left that I can think of is that you guys are using bad dvi->hdmi adapters and/or hdmi cables? These are the cables I use -
link.
Other than that, LG must using some weird voodoo that I can't figure out

In case anyone is wondering, here are the manufacture date, firmware version, and full product code of my LD450s
1) June 2010 - 03.04.33
32LD450 - UA.CUSWLHO
2) July 2010 - 03.04.33
32LD450 - UA.CUSWLHO
3) May 2010 - 03.04.27
32LD450 - UA.CUSWLH (not a typo, this one doesn't have an 'O')