Chosen Solution
i hardly use my trackpad most times i use my Kensington Roller Ball mouse. i tried to use the trackpad without the mouse connected and found the two finger click hold drag not working. all other gestures seem fine. Help!
Likely having an issue with your battery which is pressing on the trackpad from below. Lets check the battery using this gem of an app CoconutBattery post a snapshot of the main window so we can see Adding images to an existing question
