This question already has an answer here: Why is my USB mouse disconnecting and reconnecting randomly and often? 7 answers I have a mid 2010 iMac with a Logitech G500 mouse which works fine on OS X. I game on Windows 7 in bootcamp, and for a month now I have been getting random mouse disconnects while gaming. Sometimes none, sometimes 2-3 per minute. The mouse lights go off and I get the disconnect sound from Windows 7 then it connects again after a second or two. I tried changing the port I connect the mouse to, but still the same thing. The only devices on USB are Apple keyboard with Apple extension cord, the mouse, and a Creative SoundBlaster Tactic 3D Alpha USB Gaming Headset. Any ideas?