No problem, I've looked at your site and I agree that is a really weird error.
It's definitely the images with the problem, even tried downloading, modifying in Photoshop and uploading to see if it made a difference (it didn't): http://f.cl.ly/items/0y0Q3Q3m0p1l441v0W1Z/abraxo-corporate.jpg
I suggest would be to recreate the image from scratch / the originals and test in various browsers to see what's working and what's not.
Sorry, I can't be of further assistance, it's a problem I've never come across before.
Update: after saving image as PNG then back to JPG it seems to work in Chrome: http://f.cl.ly/items/0S393j1v1e0c3U3e2X0r/abraxo-corporate-2.jpg