Full display in IE

Hi, I was wondering how I get a full display on Internet Explorer when I’m designed in HTML. I see sites that go all the way to the scroll bars. However, when I make a site with an image on the left it doesn’t go all the way to the left, it goes and leaves about a quater of an inch of white space. Do other people just put a BG color and it looks to go all thew way, or is there an actual way to make sure it takes up the FULL browser window?