If you've done any annotating in LT 2009, you've probably noticed the in-place spell check. If you haven't seen it, start typing some text and deliberately make a typo. See the dotted red line? Right-click on the underlined word to get a shortcut menu of suggestions. You can also choose to ignore the word, or add it to the dictionary. Added words go into your custom dictionary (see Options for the file location). Not on LT 2009 yet? The SPELL command is still available to you; you just have to run it manually.