database outputting results twice per page (using pagination + sorthelper)

Each page is getting the same 5 db results listed twice, I cant seem to figure out why

this is how the page look page 1: post 1 post 2 post 3 post 1 post 2 post 3

page 2: post 4 post 5 post 6 post 4 post 5 post 6

template