So...I had Twine working on my old computer, but just downloaded it on my new computer. When I double click on a passage (or right click and click on "Edit", nothing happens. The dialog box doesn't pop up.
I attempted to find anything about this problem but didn't see it. I use a MBP running Mountain Lion and have downloaded the latest version of Twine. Any thoughts would be much appreciated! I am going to try reinstalling as a possible first step.