I have problem with the track pad. It is not under control. I scans the area which I do not want. In excel it does not let me to write even formula by clicking on the cells. What may be the reason? Is it hardware or software issue.
1. Reset PRAM. http://support.apple.com/kb/PH4405
2. Reset SMC. http://support.apple.com/kb/HT3964
Choose the method for:
"Resetting SMC on portables with a battery you should not remove on your own".
If this does not help, contact Apple.
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