Hi, I installed Libre Office fresh (fresh install) Versão: 4.3.5.2.0+, ID de compilação: 4.3.5.2 Arch Linux build-1, and autocorrection don’t work by default, neither english or portuguese. I could get portuguese to work only installing extension vero http://pt-br.libreoffice.org/projetos/vero , but I need english autocorrection too. Could you help me? Thanks.
No one can help, maybe I found a bug.
Heh, I wish I had the same bug, I came here to find out how to turn all that stuff off. 
You can find the options for it under Tools>AutoCorrect Options. If everything seems to be enabled, but still is not working, you may indeed have found a bug.
Yeah, everything seems enabled. Would be good some developer from Libre Office see this. Thank you for your answer.
I am using a textarea in Firefox to verify the text.