prompt for MySQL login

[grodog]

When I am browing some of the forums, I get the following login request message:

It's not every time, and if I hit cancel, the forum loads OK. I got this prompt while updating my Sepulchrave SH bookmarks @ http://www.enworld.org/forums/showthread.php?t=762 as well as reading the meta thread at http://www.enworld.org/forums/showthread.php?t=62523

Thoughts?

 

[Thomas Heretic]

It is a user's signature causing the problem.
Thanks for pointing it out.

 

[grodog]

It is a user's signature causing the problem.
Thanks for pointing it out.

De nada.

 

[Darkness]

The user has been informed of the problem with his sig.