Usually there's a white box underneath the last post in the thread into which you can respond (and also gives you the 'use rich formatting' option. Have tried three different threads now - one on Primary - the one about the Pam Gidney poem, and two on Entertainment. This has happened previously but I've never thought to ask on here. Anyone else have this problem? ...and funnily enough, this post hasn't got a white text box underneath, so I guess no-one will be able to respond to it.