Wireless Keyboard & Trackpad Spontaneously Disconnect
In the past month I've had an issue with my wireless keyboard and trackpad both randomly disconnecting from my 2011 imac. I can be working away on them when they both become unresponsive. I don't receive any sort of visual warning to tell me the devices have been disconnected. When they do work the battery level is >90%. Removing batteries and restarting the devices tends not to solve the problem, although at that stage I will receive a warning stating the devices have been disconnected. They seem to randomly become responsive again together without any other intervention. As this affects both devices at the same time I'm assuming it's a software issue and any help in solving it would be greatly appreciated. Thanks
iMac, OS X Mountain Lion (10.8.4)