I'm not the Grammar Witch. That honor belongs to several of my friends. I'm not even a good speller. But certain things do pop out and grab my attention when I'm reading someone else's manuscript.
Spellcheck told one person that this was correct:
1. She peaked into the open box.
peaked? The word is spelled correct, but the the sentence wants the word, "peeked."
2. She knew that everything was going to be alright.
Again, the word is spelled correctly, but that sentence needs to be "all right."
(and I'm only partway through this manuscript. I'm sure I'll find more.)
What's that old poem about spellcheck?
(You can find the origin of this poem here at About.com.)