I'm using Atahualpa and html sidebar widgets to create a site with completely custom graphics. The problem I'm encountering is that the background image is appearing darker than the header image and sidebar graphics. As a result, the content area is visible as a dark rectangle. This problem is only apparent on some computers, not others, and the browser version doesn't seem to affect it.
The site is visible at http://charliedwyer.com/forefront. I'm unable to find this issue on google or here on these forums, so I'm hoping someone has encountered this before.