Thanks very much for the responses. I did try both, using the Img button to upload the url, as well as attachment. Both times nothing showed up in the preview. Does anyone happen to know if we have a time limit for deleting a post? Say, five minutes and then it stays up permanently? That way, I could go ahead and post just to check it, and quickly undo it if no photo appeared. I'll search for an
answer to that question myself right now. I'll also try a photo attachment with this post to see what happens after submitting.