And lo and behold: It seems to actually work again. Bloody miracle-tech this... let it sit on a shelf for a year and it'll fix itself.. lol.
I think it may have something to do with one or multiple of the USB-ports on my MoBo going bad. I plugged it into my two frontal USB 2.0 ports (keyboard has two USB-plugs) and all seems to work fine - for now at least. I also didn't install the Corsair drivers - it's identified as a generic keyboard by Windows - but the awesome volume knob still works. Weird.
In any case.. Since I am a sane person and thus use PTT instead of voice-activation in TS, I'm shooting a video on my cell-phone right now, just so you'll know just how much *more* noise compared to your puny Razer keyboards I am able to generate with this thing .... Ha! I laugh at you and your lack of manly keyboard-noise!!!

S.