Shows same post everywhere?

I can’t find the Exclude Previously Displayed Post checkbox.

I use this widget several times on the same page and I have the same posts showing everywhere.

I wanted to use this plugin because I want to show posts from all categories except one on my home page without having to create custom post types. I also would like to display random posts in my footer but now it shows already displayed posts.

EDIT: I decided to increase my rating because this plugin is great except that Exclude Previously Displayed Post checkbox that I really need. It’s strange for me to have a plugin that lets you chose random posts but doesn’t check if the post is already displayed.