Hello All,

Problem: My macbook (2010 Mac OSX 10.6.5) trackpad is erratic/jumpy/unresponsive after I unplug the power cord. With magsafe connected it works fine.

Background: Bought computer in July. Had power adapter problems -- charged battery slower and slower until not at all. Mac service replaced my adapter and now powers up fine. Unfortunately the trackpad has since picked up this wierd tick.

My take: Might be a software problem between power source and trackpad. I really don't know, though.

Would a kind soul out there help me out and suggest a course of action?

thanks.