Showcase slider showing 2 photos on mobile device - how to adjust?

Hello,

Just upgraded a site and the template is responsive, but when I look at it on an iphone, the photos on the home page showcase slider shows 2 images at a time. I've attached an image to show you what I see.

Also, the same module if you click on the link in the slider it gives a very weird URL - not related to the blog at all, but it does take you to the correct entry. If you go to the exact same posting from the menu it gives the correct URL. Very strange....

Suggestions on how to resolve these 2 issues in the same module?

thanks,
Deb