Hi all, My MacBook had intermittent 'Bluetooth: not available' problems and I had the logic board replaced under warranty. After getting it back, everything was great...for about 3 weeks. It just started happening again, and the problem has only increased in time. I'm on Leopard now, but the problem originated when I had Tiger. I've searched around the internet, some people say a simple restart should fix it, others say to make sure to remove the power cord before restarting, others say to fix permissions. I've tried it all to no avail. Has this happened to anyone else- where you get your MacBook fixed, and then the problem crops up AGAIN? I don't even use the Bluetooth, the bigger problem is that my MacBook won't sleep as long as the Bluetooth is unavailable. Now my warranty has expired, so I'm hoping this is a software thing that can be fixed. Otherwise I'll have to go back in and hope they understand that they didn't correctly fix the problem when it was still under warranty.