Whenever I post a new thread, or respond to one, and then return to the main forum page, it tells me I cannot post, edit, or reply, and denies me access to the forums that are for registered users only. I usually have to go back to the main page, and click the forums link again to get logged in again. It isn't that big a deal, just a little annoying.

Whenever I post a new thread, or respond to one, and then return to the main forum page, it tells me I cannot post, edit, or reply, and denies me access to the forums that are for registered users only. I usually have to go back to the main page, and click the forums link again to get logged in again. It isn't that big a deal, just a little annoying.
Do you have cookies enabled? Use the "Log Out" link in the main tool bar, and when you log back in make sure the tick box "Remember me" is checked. Again, you must have cookies enabled to use this feature. That's the only thing I can think of that could be causing your problem.