Windows 7 won't spell check

[Magic Box]

I've just recently got a new computer, thus migrated from XP to Win 7. Like the title says, spell checking is not waking up, neither in emails (Thunderbird) nor on forum posts.

I'm on Firefox 6.1 and the spell checking square is checked in the options. I never had that problem on XP, so I'm quite at a loss to resolve it.

My OS is in French and Firefox/Thunderbird are in English. But that was no problem under XP, spell checking would kick in quite generously. I'm offering this information just in case the bilingual aspect would matter under Win 7, which I'm rather new to and don't know quite well yet.

Any suggestions?

[Michelle]

I use Google Chrome and spell check feature works. Maybe try downloading Chrome and see if it works?