I've noticed that, when handling RAW files created by CHDK and processed by DNG4PS-2, the white balance on the output DNGs seems to be wildly incorrect. I haven't tried particularly hard, but i've been unable to find any easy set of presets in lightroom that will rebalance the images. As an example:
A photo in JPEG, as output by the camera, unedited (though resized):

The same photo in raw and processed to DNG, also unedited: (click to see larger)

The raw image has a very strong blue tint, and white is more of a light blue than a white at all. I tried calibration with the instructions on the CHDK wiki, but the results seemed to change nothing (after being applied with dngsetmatrix) - although i'm not entirely confident of that. If there is a better way to test these, please let me know.
Is there an easy solution to this? All of my photos go through lightroom, so if it can be corrected with lightroom's adjustments in a uniform manner (the same for any image), that'd be perfectly fine.