I would like to post a reply now and then, but it keeps telling bitzi has encountered a problem, it shits me its always done it. As you can see I can post a question ok but I cant answer one. Anyone know why????????

I get the same thing, occasionally. Just hit the Back button in your browser (or back-arrow button), and click on the Submit button again for the message you are posting.

If it happens again, leave the browser window open, and try again after a few minutes pass. I don't know what causes it exactly (Server busy?), but eventually it will allow your reply to get through.