Somehow I messed up my Word settings and I don't know how to fix them.

Used to be that when I was using centered justification, then hit enter to go to the next line, Word would put my cursor in the middle of the row (i.e. still centered). I could then just hit backspace to go to left justification. Now, when I hit backspace, it just moves me up to the right end of the previous line. It's making me crazy! Funny how you get used to these little things.

Any tips?