At highly compressed time scales (defined as any scale of 125 mm per minute or
less), WAVE  normally suppresses the grid display, even if you have specified
a default grid display for use at other time scales.  To change this behavior,
select the desired grid display mode, click on 
![\ovalbox{\rule[-.3mm]{0cm}{2.5mm}\small\sf ~Redraw~}](img52.png) , and then on
, and then on
![\ovalbox{\rule[-.3mm]{0cm}{2.5mm}\small\sf ~Save as new defaults~}](img109.png) while viewing signals at 125 mm/min or
less.
 while viewing signals at 125 mm/min or
less.