I installed the release preview of Windows 8, which comes with Internet Explorer 10.

IE10 has been endowed with a spell checking Feature, which is active while I write this text.

As a matter of principle, I disable spell checking anywhere I go. I simply hate spell checking. I know better than the spell checker. (And when not it doesn't matter.)

This is all the more annoying as I write in several languages and the spell checker only does one language (German, in this case), and then even in the new and wrong spelling, not in the old an true one. How can I disable this?