Then the issue is with something else to do not being correctly logged in. The 'need to login' message only appears if you are not properly logged in. Just seeing your username does not mean you are logged in. Refresh the page before you login to reply to make sure you are indeed logged in.
Also read in the FAQ 'how' to about cookies and regularly refresh those on your computer.
Outside of this, just be careful how you login and post and if you write a lot, you may want to copy it before you click Submit, just in case.
Last edited by Administrator; 07-20-2010 at 11:27 AM.