I hate to bother you, but couldn't find the answer elsewhere.
I have some images in the header position and they fill it perfectly, but when you change the browser width, they don't scale <at all> like it does in your demo (and all the other images on the site scale and rearrange like a dream when you change the browser size).
I also have Image Show GK4 on the front page but it doesn't scale either.
Do I have to do something to make images in the header position scale with the browser window?
PS. Image Show GK4 and Grid GK5 are fantastic!