Today, I was trying to write an essay for my English class. I was using Pages when suddenly my entire essay highlighted suddenly. I can't just click to get rid of the highlight like any other time, it gets stuck like I'm holding down the primary mouse button. The only way to resolve the issue is by putting my mac to sleep, then resuming. I use a 27" iMac mid 2011, I have a magic mouse and touch pad. Please if anyone can help, I would really appreciate it.