Creating histograms

When I attempt to create a histogram with xlminer, the result looks like the attached example. It does not look like the example you show on your site.

I cannot adjust the bins such that the distribution looks like a real histogram i.e. the built in "nicing" component of the software which should decide the number of intervals is not working. I can only adjust the bins with a slider in the chart edit mode. Is there a fix for this?