Often I notice comments I want to respond to from my yahoo email. When I try to reply at the site, by using the button inside the yahoo email, I get to the DW comment form but I can't reply. I get the "your login cookie has expired" message. It won't let me log in from the comment form.

When I then go to the main DW page, or my page, my login is still there. I'm still logged in.

Just FYI.