For some odd reason my usb bluetooth receiver ever since i changed the batteries in my apple wireless keyboard is defaulted to off at startup and i have to plugin a usb keyboard to type my password in. and then after that turning bluetooth on and off in the normal bluetooth settings is greyed out and unclickable. the only way i can get bluetooth on is by going to "keyboard and mouse" then "bluetooth" and set up new device, then it notifies me bluetooth is off then i tell it "turn bluetooth on" and it does so, but it resets to off again on startup. anything you guys think i could try to fix this odd issue? I'm on 10.5.8 if that helps.