
74 CHAPTER 7
NOTE You should occasionally defragment your NXT’s
memory to prevent potential errors. Clicking the Delete
All button in the lower-left corner of the dialog in Fig-
ure 7-13 deletes all user-created programs on the NXT
and defragments the NXT’s memory. If you have impor-
tant files on your NXT, make sure to back up to your
computer first.
the little help window and the
work area map
In the lower-right corner of the main screen is a small
window with two tabs. The top tab (the question mark)
is selected by default, displaying the Little Help Window
(Figure 7-14). Whenever you place your cursor over an object
in the work area, the Lit ...