- Applications > Utilities > Disk Utility > select your start up volume > First Aid > Repair Permissions
- Restart the your Mac with the Mac OS X installation CD or DVD (through holding the key C on the keyboard). There select your preferred language and then not install Mac OS X but go to the File menu and select Disk Utility. There select your normal volume > First Aid > Repair disk. Restart your Mac.
- System Preferences > Users and hit the small "+" at the bottom to create a new user. Select Log out from the Apple menu and log in this new user.
If it worked not, check your Apple Bluetooth Software version is at 1.6 and not 1.5.