Sort:  

delete everything out the boxes close the browser and try again. or try in incognito or private mode, whatever your browser calls it. let us know how it goes

It's crazy, because I have posted successfully three times now, but when I go back and try to make the post I'd originally had the problem with? It happens again. I'm taking it as a sign that the Steemit gods don't want me to make that particular post. LOL

have you saved a post in another document? try putting it into text pad or saving it as plain text before pasting it back.

Will try this again today. :)

any luck trying again? for some reason i can't reply to your comment just above?