[alexward1981]

Ok I've narrowed the problem down to one part of the code:

if (touchEnd < 200) { // scroll on the y axis
			if (touchY >= 100 && slider.currentSlide <= slider.slideCount -2) {	
				slider.slide.eq(slider.currentSlide)
				.animate({"top": "-="+ (slider.slideHeight - touchY +100) +"px"}, 'fast');
				slider.slide.eq(slider.currentSlide+1)
				.animate({"top": "0px"}, 'fast');
				slider.currentSlide++;
			} else if (touchY <= -100 && slider.currentSlide >= 1){
				slider.slide.eq(slider.currentSlide)
				.animate({"top": "+="+ (slider.slideHeight + touchEnd +100) +"px"}, 'fast');
				slider.slide.eq(slider.currentSlide - 1)
				.animate({"top": "0px"}, 'fast');
				slider.currentSlide--;
			} else {
				slider.slide.eq(slider.currentSlide).css('top', 0); 
				if (touchY > 0) {
					slider.slide.eq(slider.currentSlide +1)
					.css('top', slider.slideHeight +100 +'px'); 
				} else {
					slider.slide.eq(slider.currentSlide -1)
					.css('top', slider.slideHeight +100 +'px'); 
				}
			}
		}

It seems to be sliding the wrong slide in this part:

slider.slide.eq(slider.currentSlide - 1)
.animate({"top": "0px"}, 'fast');
slider.currentSlide--;

But I can't for the life of me work out why.