In 9.1SP3, if I click on a graph in a node to get more detail and specify a custom timeframe and put in lets say 9:00 am for the beginning and "now" for the ending timeframe, it seems to offset the time a bit so that the graph "ends" around 3 hours ago and shows blank space between then and the current time. If I put in something other than "now" it seems ok.
After hitting refresh after putting in "now" as the time, it fills in the "end time" box with "11:59:59 PM", although it looks like it tries to graph up until "now"...
Just seems to be a bit messed up in whatever its doing, but its definitely trying to do something!! Kinda hard to explain...