[Solved]-Highcharts yAxis setExtremes far off-Highcharts

I got it working by setting the start/endOnTick setting to false in the chart and then to true on click.

http://jsfiddle.net/uNvvk/

yAxis: [{
        startOnTick: false,
        endOnTick: false,
    }, {


yAxis.options.startOnTick = true;
yAxis.options.endOnTick = true;

I've no idea why that works though!