Microsoft Word isn't autocorrecting two initial capitals in only one word: THanks

I have Word set to autocorrect two initial capitals and it is working on every word I've tried it on except the word THanks.

I've checked that there isn't anything in the Replace Text As You Type list or in my custom dictionary. I even tried adding THanks/Thanks to the Replace Text As You Type list, but it didn't help.

If I type THanks, Word underlines it in red to show it's a mistake, but it doesn't autocorrect it like it does for other words with two initial capitals.

It does autocorrect HAnks and THank. Just not THanks.

I'm using Word 2010.

Any ideas?

THanks in advance.

P.S. Guess which word I accidentally type two initial capitals on 10 times more than all other words put together. :)