The CD program files must be in a separate directory from the corpus files.
In order to generate a file containing legal tags (syntactic and POS),
run the following CorpusSearch query on an already existing corpus:
node: $ROOT
make_tag_list: t
The file containing legal tags must be in the same directory as the
corpus file(s). However, contrary to what you might expect, CD must be
invoked from some other directory.
When invoking CD on a Mac, click on the green button at the top left to
get CD to recognize the window size and resize the window to fit the
screen.
You can move around in the tree by clicking on a word in the text
window. This will only work, though, after you click on the green
button at the top left of the CD window (on a Mac).