>>>modeling
>John, John, John
>You, of all people, know that a final consonant preceded by a vowel doubles when followed by a suffix beginning with a vowel.
>In .NET terms- Syntax error..
>Tsk, tsk, tsk


Then why does "cancelled" get underlined and "canceled" does not? Travelling too. Most spellcheckers do so, and I'm not setting them to any other english but the american one.

You seem to have forgotten the one rule that the english grammar has: "we don't need no rules, we have lists".