I can't post a reply from my Mac anymore. Whatever I try there's always the same error:
Your post has been changed because invalid HTML was found in the message body. The invalid HTML has been removed. Please review the message and submit the message when you are satisfied.
I assume it's due to Mac/Unix vs. Windows linebreaks which used to buggy all the time :-)
Sorry, obviously I didn't want to send the previous message, this was just to get the failing HTML-code.
Seems to work again.