Problems with posting

[Geoffrey Leach]

There appears to be no way to edit a message once you go to 'preview'

If I post <code> with html content, the post is rejected for 'invalid' html. 

[maratsade · Accepted solution]

Sometimes this is time-related. Next time it happens, leave the message open, wait 3 minutes, then attempt to post again.   EDIT: it would also help if you posted a screenshot of the error.