Peeking into the rock

A while back a couple of people told me how to tweak my journal settings so that I wouldn't have to scroll back and forth to read the journals. The problem is big pictures. Now, I thought I had carried through with this, because I stopped having the problem. But now I'm having it again. I can't remember where to go to find the place to tweak: I can't find it, paging through the instructions: I can't find it, searching thr help FAQs: and I can't find the post where people helped me with this.

Anybody care to remind me?