well, that's a good one on me.
i don't see a spell-checker icon in my editor - even when i Go Advanced.
soooooo ... that must be the result of the "something" you downloaded?
my habit in cases like that is to immediately uninstall any "something" i install that doesn't work - especially if it creates a mess within programs that did work before. i take risks with my quilts but never with my computer. too much money at stake, and i am so cheap my skates won't roll. LOL
maybe somebody else will come along who is familiar with your "something" and can provide some tips. i will keep my fingers crossed for you.