Spell Check

Why the hell won't spell check work for me??????? I sit and type my posts, I bascaily know I suck at spelling. I run "spell check" and that is worthless... I know words are spelled wrong, but the spell check on here does not correct it. URRGH! what's a woman to do??? Okay this is something I will not loose sleep over. I will figure it out one day(in my dreams...lol)