How can I change the default bullet shape in Word 2007?

[Gige]

I prefer to use the small, square box-shaped bullet, but no matter how often
I select it, Word returns to the round bullet. A small issue, but very
annoying!

 

[Stefan Blom]

Modify the List Bullet style to include the desired bullet. Then apply that
style (which can be easily done by pressing Ctrl+Shift+L) whenever you need
bullet formatting.

Note that Word 2007 doesn't have such a thing as a "default bullet"; what
you get when clicking the Bullet button is the most recently chosen format
within the current Word document.