Hmm, I thought your Annelids errors were because of the not-yet-published enhancements to MiniMicro that it uses. But all the demos should work. So that makes me worry that it's something else, perhaps in the Linux version of MM (which is not heavily tested).
To post a screenshot, on at least some platforms/browsers, if you have an image on the clipboard you can just Paste while you're editing a message, and it will (1) upload your image to imgur, and (2) insert a link.
But if that doesn't work for you, then just put "IMG" in square brackets, then the URL of the image (at imgur or whatever), and then "/IMG" in square brackets.
I'm eager to hear more about these demos not working! Can you try the same demos in the WebGL version, either here or here?
