I recently got a Logitech MX310 optical mouse. It works flawelessly with USB Overdrive. The thing is, the light stays on when my computer is off. Not just when it sleeps, but when it's completely shut down. I haven't looked close enough to tell wether the light dims at shutdown. My Apple Pro Mouse turns a brighter red when moved, then if let sit after a few seconds it dims again. This one doesn't do that, it's a steady light all the time. I've got it plugged into the USB port on my Apple ADC CRT hooked to my G4/466 Digital Audio. I'm not really worried it's harming the mouse, but I havn't seen any documentation on this phenomenon and I'm curious as to why it happens. Any insight would be appreciated.