If you have ever used a non-laser tracking mouse on a wood surface you have a good idea of what its like.
What appears to be happening is that there is a short from the output of the touchpad to the motherboard. Removing the little piece of foil that appears to be 'grounding' the trackpad from the screw 100% fixed it (for me).
http://www.youtube.com/watch?v=8ak20j48w1A
If you have ever used a non-laser tracking mouse on a wood surface you have a good idea of what its like.
What appears to be happening is that there is a short from the output of the touchpad to the motherboard. Removing the little piece of foil that appears to be 'grounding' the trackpad from the screw 100% fixed it (for me).