Clearing out my cache didn't make any difference, so I went ahead and used the error console, with the following result:

Error: syntax error
Source File: javascript:%20http://www.dreamwidth.org/customize/options?group=text
Line: 1, Column: 54
Source Code:
http://www.dreamwidth.org/customize/options?group=text

ETA: Well, it's definitely something with the browser on my home computer (or maybe the computer itself), because I was able to expand the sections and make the changes I wanted at a work computer. Can't figure out what to do with mine to debug it. :/