Pop-up window asking for username/password?

[bookishboy]

Hey admins, I just encountered something odd. When I open up this thread:
http://cheapassgamer.com/forums/showthread.php?t=103909

I get a small popup window which says the following:

Enter username and password for "Restricted Area" at http://gaming.free4me.net

It includes 2 fields to enter a username and password, and doesn't appear to be related to CAG.

Is this from one of the hosted ads, or some sort of malicious cross-site-scripting?

I'm using Firefox 1.5.0.7 to view the site.

Thanks, and sorry if it's nothing.

[Squall835]

Yeah, I'm getting the same thing.

[Trakan]

I got it yesterday when clicking on the last post button on a random thread.

[CheapyD]

Thanks for the heads up!
Someone had a wonky signature linking to an image that caused that pop-up.
Fixed.