Hi, just got the 27 Imac and about a week of owning it, my magic mouse stops swiping back on the web browser. I have try software updates, but everything is updated. I also try to reboot the computer, turning the mouse off then back on again, going into the system prefs., and making sure the the swiping option is checked. I dont know what to do, has this happened to anyone of you, and what did you do/can I do? Thanks.