Move the tab control down until no part of it touches or crosses the boundary line between the header and the body layout parts.
Thanks for your speedy reply. I just opened a new database, added four fields, went to layout and tried moving the tab control down away from the header boundary but in Browse mode, I'm still getting all the fields that are on my default tab on the other tab that I added as well..
Sorry for the followup, I got it now. Apparently I inadvertantly deleted the header when I deleted the previous tab control that I'd added, but your advice was right on the mark. Thanks again, sorry again to have written needlessly.