I had this issue with my CM Sentinel and I FIXED IT...
Apparently from what I found myself, the guy on their CS team didn't even know, was that the firmware update only works on WinXP!
Luckily when I "bricked" mine, I had an old laptop with XP knocking around. Ran the firmware update again and it breathed again. Let me know if you get it fixed.
Make the keyboard emulate mouse. Go to Start > Control Panel > Ease of Access to activate it. If this does not work then you need to do a windows reinstall as it would seem anything to do with "pointer control" is broken.