Every time I (for example) indent using 'increase indent' button, or put in
bullet (basically any formatting button I use), the formatting I wanted to
apply to just that line is applied to the whole document. E.g., if I apply a
bullet to a line, every line in the entire document gets a bullet!! When I
ctrl-Z to undo the whole document formatting, then the formatting I DID want
is properly applied where I wanted it to be, e.g., the bullets for the entire
document are removed, and the bullet I wanted in the first place is there.

Basically it seems like Word takes two steps forward (Bullet line, then
bullet whole document) and one step back with ctrl-Z (undo bullet whole
document, leave Bullet Line in place). Any help would be sooo appreciated.
Thanks!