Hi Gizmo . . .
Definitely a style sheet problem. And it seems I am back to square one on how to implement our header branding:
In 7.5.8 I tweaked the body declaration to push the breadcrumbs bar down - only partially overlaying the back-ground-header image:
font-family: Trebuchet MS, Verdana, Arial, Helvetica, sans-serif;
) transparent no-repeat;
Using the old style the Forum renders the way it always did - but interferes with the Attachment Manager popup.
When using same code fitted to a 7.7.5 template - it just creates a gap at the top of the page - with all the of image overlayed entirely further down the page. And sure enough steps on Attachment Manager pop up.
Any would be greatly appreciated.