“Related” posts links

Hi!

I just noticed that some new portfolio projects and some old ones, but not all, show links to three “related” posts below the content, above the keywords. An example here:

http://www.ilkkavalkila.fi/portfolio/erja-lyytinen/

(The text “Aiheeseen liittyy” and the links in red below it)

The related posts don’t seem to be very well selected, i.e. not necessarily related, and I would like to get rid of them. I also find it weird that they appear only on some pages quite randomly.