Brett on 26 Sep, 2011 06:07 PM
Thanks for contacting me here.
Last things first, the current Support button should open your default email client, but depending on your setup may have issues. The next version will go straight to this support site.
Regarding the error screen, do you have "Process HTML" turned on in the preferences? The title of the option is a little misleading, I need to reword that; you really want that turned off so that the Markdown processor doesn't attempt to handle the HTML as Markdown.
Beyond that, you may also want to turn off "Strip MMD Metadata" and "Remove YAML Headers" as well. Let me know if that helps.