Sorry about being so annoying and asking so many questions.
I have another issue which might be linked to the slider. I have set up my site as the demo on the home page I inserted my own images in the slider on the bottom 2/3 slider. These images sometimes not always enlarge to the original size of the image, width being the size of the column then the height being the full image, not cropped to the size it should be. This sometimes happens not always, when I clear my cache it disappears but if I go through other pages then come back to the home page it happens. I am wondering if this is because my images are to big, they have all been rescaled to the size of the slider image of the woman with stones on her back.
Hope you can help me out with this new issue.