OT: Site only partially encrypted?

Hi, Neil or anyone else who's interested. Ever since I bought a new computer with Windows 7 instead of Windows XP, I've been getting warnings for this forum that say "You have requested a page that is only partially encrypted and does not prevent eavesdropping."

I thought that the Yahoo forums were secure and that unregistered people could no longer read these messages. Should we worry about eavesdroppers reading our posts without permission?

For now, I'm just closing the message, which I find more annoying than worrisome.

Thanks,
Carol