Scott,
I think its a general problem with the monitor. I have the same issue... white seems to be brown-ish. I'm no expert on the matter by any means but it seems as if the monitor is designed for images that have "arcade behavior". So very bright static images like a Windows window... seem to be difficult for it.
However... when I ordered the Kortek, the first one I got was not in a Betson box and appeared to be re-packaged. It was missing an AC power cord and the monitor bracket on the right side was mangled (interestingly the box was not damaged). This monitor had horrible white quality. I thought it may have been banged up, repacked and returned to factory and resold. Turns out it was... Betson sent me a replacement and the new one does not have nearly the brown-white that my first unit did.