Did it stop working or has it never worked? From what you say it is possible that the gesture associated with a "tap" hasn't been configured to do a left click, or do you mean that the actual touchpad "button" doesn't work? Can you be more explicit?
1.) Did it stop working or has it never worked?
- yes it stopped working.
2.) the gesture associated with a "tap" hasn't been configured to do a left click
- it has been configured to do a left click since just before it stopped it was still working.
3.)do you mean that the actual touchpad "button" doesn't work?
- not the button...its the touchpad itself.