The DarkStorm lenses aren't shielded, and since this seems to have something to do with the display and RF interference, that seemed a likely culprit (not that anyone has reported this before, to my knowledge). But you've got a shielded one, so that's definitely not it.

I'd contact support. It sounds to me like something internal to the unit has failed to be grounded properly, but I'm not an EE, so I could be wrong. Regardless, it sounds like a fault that will require a physical solution.