oOple.com Forums - Posting problems

Now and again I get this message when trying to reply to a post, even when I am logged in. Anybody else getting it. I fill in my details again but it still wont let me reply but it will let me use the quote.

Bulletin Message

You are not logged in or you do not have permission to access this page. This could be due to one of several reasons:

<LI class=smallfont>You are not logged in. Fill in the form at the bottom of this page and try again. <LI class=smallfont>You may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.

Log inUser Name:

Password:
Forgotten Your Password? Remember Me? The administrator may have required you to register before you can view this page.