When defining viewports in the section editor, say choosing two, three are displayed. The two new viewports split either horizontally or vertically and another viewport of the entire model space behind the two new ones, size equals both of the two new viewports together, ie two small rectangles over top of one big square one. All of the objects in the overall viewport show through the two new viewports. Why is there one overall viewport behind the two new ones. Shouldn't this not be there? The display of these drawing entities interfere with performing work in the other two viewports. Is there a setting that I am not aware of that needs turned off?
Very odd and annoying to say the least.

Any ideas???

Thanks!