Thanks for the plugin.
1. It doubles the "Related Posts" in categories whe full posts are displayed in categories.
ELI's Related Posts Footer Links and Widget.
In settings the option is set to 5 posts, realted by category.
2. I have another site. Has 1 category and 10 posts. I set up the plugin : by category, set to 5. I get only 4 posts to show.
I wonder why.
Thanks for looking into this.