Not sure if this warrants this post or not, but might as well give the heads up just in case. So my K100 hasn't frozen since my last post but by DARK CORE RGB PRO Wireless Mouse did. Could have been mere coincidence or for some other reason, who knows. But I was also forced to turn it off and reconnect it physically to the PC to get it to work again. This is the first time this has happened since getting it and I acquired it at the same time as the keyboard.