Heyyo, I've really wanted a new keyboard for quite some time, and having RGB is a near-to must for me when it comes to computer accessories nowadays. Seeing how within my budget the K55 was as well, it was the perfect buy! The keyboard has been working far beyond my expectations, until last night. All the LED's at the topright stopped working, though the functions themselves worked (CAPSLOCK and NUMLOCK, specifically). I tried installing CUE and clicking around on mostly everything with no progress, leading me to uninstalling it as I saw it as unneeded software (but, is there a way to fix the issue using that software, i'll be glad to install it again). On a good note, reconnecting the keyboard seems to have fixed the LED's, but on a bad note, this is not issues I want with a new product, about a day into use. I've also had to do this twice so far. Should I bite the bullet and plug in my good old Logitech G110 and take this back to the shop first thing tomorrow, or are we rather looking at a firmware/software issue? I've seen people have similar problems, but do we yet have a "waterproof" fix or are we still lost on that? For what it's worth, it seems to happen when I use fullscreen applications, or at the very least, I've seen it happen whenever I sit playing Watch Dogs. But I guess it may, or may not be a coincidence. I've very recently updated my Bios and Chipset drivers for my motherboard (ASUS Z87-K), ensured that I've got the latest windows updates, and "force reinstalled" the generic keyboard drivers via Windows own device manager (following this guide). Thanks a lot in advance! EDIT 1: I NOW HAVE THE CAUSE OF THE ISSUE! (Though not the solution). When I unplug any other USB device, then plug it back in (for example, my headset charger), the Capslock and Numlock LED's freeze. Nice having the issue pinpointed, now for a solution. Anyone?