Alright or all right?

Come and tell me when it is correct to use "alright" as one word.  First response (and perhaps more) earns 5 points extra credit.

Brian P. Cleary

In formal, edited writing (term paper, academic article, essay, etc.), when is it correct to use alright as one word? Here’s a little tip: Never. And don’t give me, “Spell Check didn’t underline it.” Spell Check doesn’t underline it when you type, “I walked along way home,” either.