z-order problem mozilla vs. ie - Ajax,XML,HTML,Javascript,Web & CSS, XSLT

Hi@all!I have a layering-problem on my site:I want to place a news-div /above/ my main-divmaking the text in the main-div float around thenews-div. This works fine with Mozilla, but inwith IE 6 on Windows the news-div lies always/behind/ the main-div. I experimented with z-index,the order of the......