MS Bluetooth Notebook Mouse will not pair with macBookpro. tried all things. is recognized but will not pair. new batteries, rebooted, reset pram. it worked until i removed it by mistake. OS 10.8.2. Only thing I can think to do is throw it aganst the wall, but that will only mean that I'll need to buy a new mouse and start all over. Hoping someone has a better idea.
Try deleting the mouse from the system. Turn the mouse off. Reset SMC (which is also a restart. Turn the mouse on and, hopefully, it will be found by the system.