Am I the only one who gets these strange gray boxes on the bleeping computer webpage?

I have not seen them. Let me log out and have a look.
BRB

I will edit this post in a bit.

Edit: I did not see any gray box. I even went to the excact thread you took a screenshot from.
http://www.bleepingcomputer.com/forums/topic23981.html

Of course I was just a "guest" viewing. Now whether that means anything, I do not know.
The ads show in between the posts.

This is maybe something that Grinler will have to answer.

Sorry I could not be of more help.

They appear randomly all over the bleeping computer site but nowhere else and right-clicking so that the context-menu pops up on top of them makes the disappear.

I remember reading about someone else having this problem I forget, where the topic is. If I find it I'll post it back here.

EDIT: Can't find it. Keep getting too broard results. If anyone remembers this topic or knows where it is. Please post it here.

Try a reinstall or a fresh download of your Firefox Browser.

I have seen this on a couple of occasions and not just at BC, but only with
the Firefox and not using IE.

I get this sort of thing happening pretty regular.

Because of all the anti spy/virus/adware and stuff convinced it not a problem with an infection (also run loads of other checkers).

In my case i believe it because ive got a rubbish old system.

Win98se
440Mb ram
Onboard graphics ----not sure how much memory it uses but it cant be more that 1 Mb

Edit:

It only happens when I use forefox, and i am using the latest version. And not just here at BC.

I've had it happen on two different computers on several different versions of firefox, but only here on BC.