iweb help

Hello, I have created a couple of sites for my business using the latest version of iWEB. When I test view them on PC's the sites become stretched horizontally making the images look fat and squatty. Any idea why this is happening and what I can do to correct it so that my sites are consistent from user to user? Thanks in advance for any light you can shed on this for me.
Andy

http://www.kenyonstudios.com

Stretched? Looks fine to me using Firefox

Looks fine for me also. Maybe look at your screen resolution settings on your monitor? Try a testing in one of those sites that will simulate a browser version and monitor resolution. You can find links at lynda.com