It appears to only go pale with images that are low-res. This makes me believe it has more to do with how the browser/plug-in renders images that are stretched than the site itself. A quick solution would be to find those images at a higher resolution. If you can’t open them in a photo editor and increase their size. They’ll look a bit fuzzy but, hey, the site will stretch them anyways.
Other than that I’m unsure why that would happen.
@esmi, thnx. I took your advice!
@invot, I think you got the solution! I checked the images and the were a different size. I added two others with higher resolution and the work fine.
Thanks!