I have gotten the latest firmware update and it fixed the annoying humming of the lights, but the capslock light still remains dark unless you cycle through the modes.
I have something else you can try, not really related. I can't get anybody else to confirm this.... Press Fn (CapsLock) +LCtrl + Win, then press LCtrl repeatedly and see if you can toggle through some new modes, one being a dancing light and the other being the illumination only of the "3" digit.