Use double "new line" for new section.

You can use the "Go Advanced" button to have more abilities to format the posting; before sending your posting use "Preview" to see how it looks like.

If "noscript" (within Iceweasel/Firefox) is active for http://knoppix.net/forum/ disable it for this website; otherwise you cannot use the format abilities.

Below the editor area is the "Additional Options" area. With "Attachments => Manage Attachments" you can upload images and after this insert them in your posting.

"mc" and "mcedit" had changed the location for the personal configuration files; therefore the unclear message. Start mcedit once more and it will work.