hi -
I just brought up PP on my DSL line,
and for example, it is showing a round trip time of 10-16ms.
However, the bottom graph has a scale from 0-24 on the left side.
Since it is RT of 16ms, it only is using or displaying the top 1/3 of the graph,
with the bottom 2/3 of the graph area blank or wasted space.
I have the PL% set at 5% on the right side of the graph.

I would think that the left side graph scale could be set for "ms",
and have a range scale to help magnify the peaks & valleys,
and thus use the entire graphing area.
The right side for PL% could pretend the bottom is still zero - like now.