Slide show images on top of each other...

Hi,

I have tweeked the ancart template background and colour scheme to suit the logo.

However now I am trying to add a slideshow they are not showing 1 image at a time and rotating, it is showing duplicate images and above each ither. In system > design > banners I currently have 1 image in the image set, a pink square, but it is showing 2. See image.

Can someone please advise?

Thanks