I've had an issue with sleep mode with this mouse since forever but until recently it's not really bothered me. I have the Razer Copperhead and when I try and resume from sleep or hibernation I get a case of lights on nobody home, the mouse lights up but won't do anything until I disconnect and reconnect it. It's not the USB port and from searching on Google it appears to be a common issue that someone managed to fix however the website that I got all this info off no longer exists and obviously I can't download the file through Google cache. I've had this issue on both Vista and Windows 7. Does anyone know of any way which I can stop this happening as I don't want to be crawling behind my PC to reconnect the mouse every time...