Microsoft Word 07 Spell Check not working?

Okay, well. Recently my spell check on MW07 stopped working. I noticed this when I made an obvious typo and the squiggly red line didn't pop up. I ignored it, then, but when it kept happening, I tested it by putting something like, "fpuaw" and it still didn't show up! So does anyone know how I can turn spell check/dictionary back on/put it back to normal? :(