I would like to insert some pics in a post to illustrate a problem. Clicking the 'insert' icon asks for a URL - I have the pics in Flickr, but after inserting the urls, adding one comment, when I clicked on submit, was told I wasn't logged in. I did log in, but each time I try this, I'm told I'm not. Kind of confusing. Obviously I'm doing something incorrectly. I'd appreciate some advice, please.