My wireless mighty mouse has been disconnecting from my new iMac quite frequently. The bluetooth on the menu bar still shows the three little dots like its connected. Since I don't have another mouse to connect when this happens, I have to jump on my laptop and use screen share to "disconnect" and then reconnect the mouse. The guy at the Apple Store that sold me my computer told me that his does this a lot. I thought he was crazy. My MacBook has never done this before. I'm using the exact same mouse that I used with my MacBook. Any suggestions? Should I call up Apple and ask them to send me a wired mighty mouse because this happens so often and send them the unused one?