I'm fairly certain it's a super simple issue, I've changed nothing BUT the mouse in my system at all and haven't downloaded anything new lately. But my old mouse started dying out on me in the middle of usage it'd just turn off LED and everything sometimes never even come back on til an unplug and replug so I grabbed my replacement mouse, this would happen multiple times in just one hour of play. Now the problem is whenever windows 7 starts up I have to unplug it once and then plug it back in and bam no issues til the system turns off again.