If you do NOT have the Edge Extensions option ticked in the Style, then there should be none shown - no matter what the number is in its box.
Ensure you update the desired Style[s] and that the linked SKP is reloaded in the Layout document.
Thanks Dave. Been away. The wired mouse is the same. I'll check settings and see if I can find anything. Right now it takes about 3-4 spins of the wheel to get from zoom extents to closs-in, and it's kind of jerky. Gets faster once I get in closer.
Is there a "zoom window" command on layout that can get me in close? I can't find a command like that on Layout.