I don't know if anyone else is experiencing problems here, but I posted an answer last night which disappeared almost immediately, and now I can't post any, so I'm trying it in the 'question' bit. I noticed that some of Octavius's answers, which were perfectly reasonable, have disappeared too.
My apologies to anyone expecting a response from me. I have emailed both the Ed and the technical team, so hopefully normal service will be resumed as soon as possible.
And looking at the questions below, it seems with well and truly. The site has now displayed everything I tried to to about not being able to post. Ha! All or nothing!