Strange font with IE8 and Vbulletin
 

Since today I've got a very strange problem with vBulletin sites.

My IE8 looks good, but the content, so the forum itself, suddenly has big letters, even here on vbulletin.

Problem is -not- occuring when I visit phpbb or IPB forums, only vbulletin and it's not occuring with Firefox.

I will attach screenshots about what I mean.

First screenshot is how it looks.
Number 2 is how it should look.

And screenshot 3 proves that it's forum related because it's not happening in the portal section like you can see in the third screenshot.

Attached Images http://www.vbulletin.com/forum/images/attach/png.gif test1.png‎ (43.3 KB) http://www.vbulletin.com/forum/images/attach/png.gif test2.png‎ (40.5 KB) http://www.vbulletin.com/forum/images/attach/png.gif test3.png‎ (68.9 KB)