Viewing a thread, something has changed

I must have right clicked when I meant to left click or something, but when I view a thread, I see one post plus the tree structure of the post instead of all the posts on the thread.

I'm sure it's just a preference setting somewhere, but I can't find the somewhere.

Help.

I must have right clicked when I meant to left click or something, but when I view a thread, I see one post plus the tree structure of the post instead of all the posts on the thread.

 

I'm sure it's just a preference setting somewhere, but I can't find the somewhere.

 

Help.

Click the options upper right and go to display options to switch it back to the other way