[Plugin: Promotion Slider] More then one slider on page

I have not seen this specific issue elsewhere in this forum. The Promotion Slider advertises “multiple rotating ad zones.” I tried to implement two sliders each calling different categories. My result was that the sliders would end up using slides from both categories in each slider.

Am I missing a step or have others had the same result?

Thanks, Ian

http://wordpress.org/extend/plugins/promotion-slider/