My b2evolution Version: Not Entered

I have received two complaints recently from people who tell me they are seeing someone else's name and e-mail address when they go to the comment form to post a response.

"I got this message in my e-mail today from a person I have never heard of before.

'FYI When I was reading the news this morning, I scrolled down to read the comments ... and your info was in my 'Leave a Comment' area... I would be upset if mine were on someone else's screen, so I thought that I would let you know.'

How does my username and e-mail address show up on someone else's machine?"

Why am I seeing other bloggers email addresses when I should not be seeing them?

Any thoughts on why this would happen? Would this be a cookie issue, database flaw or hack? I do not yet know if the two people have the same ISP.

As a follow up, one of the people told me

typically the cookies would provide the correct name and email address. I have noticed as of late that some times those fields can be blank as well but in addition too seeing other names and email addresses in these fields sometimes I see my normal username and email address as well.

Note: Reposted to the proper category. Admin, please lock or kill http://forums.b2evolution.net/viewtopic.php?t=20403