This week I started using my Macbook again (actually picked up an Air too!) and I ran into my old scroll back issue. I use Irssi as my IRC client. In order to avoid losing conversations I run it inside a Screen session on a remote Linux server. In OSX, while using Terminal, I was unable to scroll back in the Irssi history. Well I have that problem no more! The following key combinations will allow me to scroll however I want 🙂

Scroll up:
Fn+Shift+Up

Scroll down:
Fn+Shift+Down