Hopefully, this will take better than my emoticon 102 post did.
Anyhow...as you type a message in, or a reply or whatever...keep your eyes open and any words you have that are underlined with a squigley red line, are thought to be misspelled by the program. If you go back to these words prior to posting the message, and right click on them, you should get a selection of possible spellings for that word...who knows, one may even be correct

Whodathunkit? (like that word comes up as misspelled...pfft...gotta be kidding...Whodathunkit has been in the dictionary for generations!

Jim