What I found in all this is that the trackpad apparently works it's way forward and gets wedged on the frame of the palmrest plastic. After the trackpad is removed. re-install it by pushing the back side of the trackpad (not the underside by the tape) as much as you can to butt it up to the palmrest plastic closest to the keyboard. This should leave enough of a gap on the front side of the trackpad where it won't catch and allow it to freely move and click.