I'll be able to troubleshoot again tonight. Thanks for your patience. In the meantime, I'm not sure but I think you can upload to sites like http://imgur.com and paste to embed the URL.

Posted by: Pieter Dom

... In the meantime, I'm not sure but I think you can upload to sites like http://imgur.com and paste to embed the URL.

Roger that, Pieter - I'm using one of my own storage accounts that allows hotlinking, then adding the simple HTML code "<img src="LocationAndNameOfPhoto"> after I've clicked the Source Code button in the text menu. A do-it-yourself embed routine.

As mentioned in a different forum, the issue was resolved and attachments can be uploaded again! Sorry for the inconvenience.

That plug-in you got from Mr. C. was a bad idea...