Far too much grain (noise for us users of photoshop). I often use noise myself to get a certain texture but unfortunately the class style uses far too much of it.
Have you tried just using the background colour and removing the background for #content .pageContent ?
Yeah I have to agree. There's so much "noise" applied it really doesn't make a significant different tbh. Removing that prominent noise image would be something I'd seriously look at if I were you it's just too much imo but you may like it I just find that over-using it just kills what is a nice effect when it's deployed for certain areas.