I'm running version 2.1.11, the latest when I check for Updates. For a very long time now these graphs plot values of 0 (zero), EVEN IF I have entered nothing in the data field. Some time ago I believe I had read some forum post where you had mentioned you were aware of this problem, so I expected a subsequent fix, but today the problem still exists. Do you have a plan to fix this; this problem makes such graphs much less credible when you are trying to speak with your Care Providers?