anchor.diff:  
   uses
     fpg_stringutils;
  +
  +const
  +  DFL_TAB_HEIGHT = 21;
  +  DFL_TAB_WIDTH = 0;
     
     
   // compare function used by FPages.Sort
  
positive.code: begin
    if FFixedTabHeight = AValue then
      Exit; //==>
    if AValue > 5 then
    begin
      FFixedTabHeight := AValue;
      RePaint;
  
negative.code: begin
    if FFixedTabWidth = AValue then
      Exit; //==>
    if AValue >= 5 then
    begin
      FFixedTabWidth := AValue;
      RePaint;
  