I've been taking a close look at the .ICM color profile and it's definitely broken. The "red" value is totally nuts making everything green. The 23inch monitor profile that is on the same CD isn't broken, but those are values for another monitor. If you open Photoshop having the broken profile as your default profile in windows it warns you it's broken, and doesn't warn you if you're using the 23 inch monitor profile. You can take a look inside profiles with free software like IccXml, that's what I used to compare both profiles.
<XYZType> <TagSignature>rXYZ</TagSignature> <XYZNumber X="-3308.52368164" Y="-1127.65075684" Z="-16148.61914063"/> </XYZType> <XYZType> <TagSignature>gXYZ</TagSignature> <XYZNumber X="0.41940308" Y="0.74780273" Z="0.05749512"/> </XYZType> <XYZType> <TagSignature>bXYZ</TagSignature> <XYZNumber X="0.15620422" Y="0.05509949" Z="0.77340698"/> </XYZType>
Those negative numbers shoud be something similar to the other ones with zero point something.
I've just checked the korean website http://lgservice.co.kr (the only one where you can download driver files for this monitor including the icm file) and there's no update at the time of writing this.
Update:
The newer LG 22EA63V seems to have the exact same panel, and non broken icm files are available from the LG korean site. I've chosen that profile manually and it's OK. Link to 22EA63V drivers