It just now happened to me on the rust removal post. Every time you make a post or reply, copy it just in case. It saves on typing!
I re-posted and pasted my reply and everything worked OK.
Do You own a car built by Durant? 1923 Star Touring, 1927 Star Coupe
Ron and Don, I haven't had that happen to me before, but if it happens again try copying your test, then either press "Ctrl Z" to undo the post or the F5 key refresh the page.