Images overlap and are out of whack

Images don't function properly. They seem out of alignment with each other.
Important to know:

1. All images are 900x400 pixels @72 DPI
2. I have tried with Load jQuery On and Off to no avail
3. here's the link to the website:
www.graphitiksadvertising.com

Attached are my settings:

Looks perfect on my computer. Let me know what browser you're using?