I'm going completely nuts here.
I am trying to design a page with a background image rather than a background colour (either way it doesn't make a difference as the same thing happens anyway). I have a 17" monitor connected to my PowerBook which I am trying to design on. When I choose 17" as the default size in Go Live the window opens to only half the width of my actual screen, so I hit the green button to maximise it to full screen mode.
Next I add a layout grid and resize it to the current (now maximised window) and choose an image from the folder in my site window to use as a background. However when I preview it (either using Go Live's preview or in Safari) the web page is not the full size of my 17" monitor at all. I have tried everything I know but it either becomes too big a page (requiring scrolling) or is a quarter of the page in size.
So I thought I'd test it out using one of the templates in Go Live. Same thing, the web page is only a quarter of the size of the browser window on my 17' monitor.
It's really ticking me off

Anyone have any advice please?