In reply to Paul Phillips - UKC and UKH:
logged in, some pages show me as logged in at the top right but the buttons underneath comments tell me to log in to reply to a topic.
Also (seems only to apply to front page articles) logged in and clicking through to topics shows me as logged out again.
Dont know if its relevant but Alex Roddies latest article about his cairngorm walk 'Backpacking the Glens' showed up and I really enjoyed reading it so went to leave a comment, and said I was logged out, so I logged in and it threw me out again, then promptly disappeared altogether for a number of days, even going to the copied link said the article didnt exist full stop so I gave up.