I have an apple wireless keyboard and proclick mouse. Every once in a while they lose connectivity, but I was able to find fixes on this site (reboot, turn off and on bluetooth). However, now I am unable to connect- tried starting all over with deleting these items and setting up new devices. The mac book will see them sporadically, but not connect/pair. Tried new batteries, no cell phones/other electronics nearby. Can't even get these items setup. Did the apple updates yesterday. Help? 