All too frequently my mba just loses contact with my bluetooth mouse (bluetake name) (batteries tested and good). This is often followed by a total freeze requiring a restart. I also have the go to sleep not wake up problem occasionally. The machine has been to apple repair for that problem. Tech support just had me do a system management restart (press shift,control, option and power let rest for 5 seconds, press power). Any other bluetooth problems out there and if so any diagnosis or solution?