Wierd user post problem

[Magz]

Hi all,

i received a pm from a reg user in my forum, saying he had submitted a post, but........the post display name shows as being posted from another reg user on the site.

I have checked the ips and it is indeed showing incorrect user name aganst the post.

Untill this was hightlighted to me, my forum is and has been running flawlessly

Any ideas heres please?

regards