some funny person,, has blocked the spell checker thingy popup on my computer

you knoe the one,, one the box when it says,, post,, spell check
im not to good at spelling,, my typing is also crap,, so,, mix the two up,, i cant even understand some of the words i tye
pllus,, single mummy to sick, co# sleeping,, bf to sleep~#,, snacker ,, zomby mummy here also,, not good combo,,
anyone know how to fix it?