Slider showing other images which are also attached to page

Hi,

I’ve installed the slider and got it working fine, however once I insert another picture into the post it seems this image then becomes attached to the page in question, meaning that the image shows up in the slider which is not what I wanted to happen. I can’t seem to find any way to unattach these pictures from the page, any ideas?

thanks

Sam

https://www.ads-software.com/extend/plugins/oik-nivo-slider/