>If you're happy with LibreOffice then it sounds like everything's good
Well, as said earlier: in theory I would prefer Abiword because I love its much less cluttered user interface but if it isn't working properly for me I might stick with Libre Office Writer for the time being. I don't use such word processing software that much but when I want to use it then the spell checking is one of the main reasons.
Thank you for helping me to find my way, chaosmonk.
