Well this is still an issue I'm experiencing. The site was being built to replace my wow guild's old site. After being populated a bit and discussing the issue with some other guild members. We think we narrowed it down to a javascript.. More specifically, the itemstats mod, which displays wow item's stats in a mouse over pulled from a source site, such as wowhead in my sack. not sure on a fix just yet, but suppose it's going to require digging through the javascript.. ugghhh
Would be awesome if anyone else may have experienced a problem similar to this, though I know it's very situational for me.
Edit.. further discussion may rule this idea out... soo back at square 1 again hahaha