I looked at you site, no IH 2 is not doing anything. Check your includes/functions/html_output.php, I don't think its modified from stock.

BTW IH2 has not been updated since 5/1/2006 . It doesn't have issues because its still in development, rather the oposite. It was rebuilt for 1.3.x, but then never worked on, so there are lots of weird bugs, patches, tricks etc. to get it to work. The origional author hasn't even been on the forum since June.

This weekend I will sit down and roll a clean new package for 1.3.8a. It won't fix any congenital flaws (I'm not that good), but I can at least make it so people can get it installed without so many headaches.