I have come up with a solution. First I deleted the bad layout and used LeeMac's Steal routine to import the replacement layout. FIXED!!!
A special thanks goes to Lee.
;;-----------------------------------------=={ Steal }==-----------------------------------------;;
;; ;;
;; ;;
;; -------------------------------------------------- ;;
;; Program Overview ;;
;; -------------------------------------------------- ;;
;; ;;
;; Allows the user to import (humourously: 'steal') items from another drawing into the active ;;
;; drawing. ;;
;; ;;
;; Upon running the program with 'Steal' at the AutoCAD command-line, the user is prompted to ;;
;; select a drawing to steal from (dwg/dwt/dws). Upon selection, if the selected drawing ;;
;; contains items not already present in the current drawing, a dialog will appear detailing ;;
;; items available for import. ;;
;; ;;
;; The user may choose multiple items from a list of: ;;
;; ;;
;; - Blocks ;;
;; - Layers ;;
;; - Linetypes ;;
;; - Dimension Styles ;;
;; - Text Styles ;;
;; - Table Styles ;;
;; - MLeader Styles ;;
;; - MLine Styles ;;
;; - Layouts ;;
;; - Page Setups ;;
;; - User Coordinate Systems ;;
;; - Groups ;;
;; - Views ;;
;; - Layer States ;;
;; - Scales ;;
;; - Materials ;;
;; - Viewports ;;
;; - Drawing Properties ;;
;; - Custom Properties ;;
;; ;;
