Thunderbird spell checker red underlining every word

[Konstantin Svist]

On 11/08/2012 05:28 AM, JD wrote:
> Have thunderbird-15.0.1-1.fc16.i686
>
> While composing a message, TB always red underlines
> just about every correctly spelled word.
>
> I checked to see what the spelchecker language setting was.
> Edit -> Preferences -> Spelling
> is set to English/United States
>
> So why is TB red underlining every word?
> Is there a setting I am missing?

Right-click inside the email that you're composing, there should be a 
Languages menu there. It's probably set to non-default