This issue was first seen in the .org site during early development. I'm currently working on some style sheets fixes for he component showcase and introduced this issue in IE 7.

When a users navigates from link to link in the navigation tree a white header appears at the top of the page. This can be fixed with a page refresh. I had a fix for this a while back but it broke Safari. The fix is a follows:

#history-frame{
    display: none;
}

I've tested this fix on Safari Beta 3 on Windows and it seems to work well. I need to have a mac person try this fix out by adding the above line to any ICEfaces application css. If I remember correctly, the css managed to mess up dom updates.

If the fix work then we need to either update the default history-frame iframe style attribute with this additional one. If it doesn't work on Safari then the fix would be best applied to only ie 7 using our outputStyle component.