Contour next confusing results....help.

I recently began using contour next after being diagnosed with diabetes. I've been using the "no mark" AugoLog feature for the past two days. Well today I used the "no mark" two hours after eating and my result was 92. I decided to take it again using the "after meal" AutoLog and it gave me 114. Then I took it a 3rd time on "no mark" again and it gave me 93.

From what I read in the manual, I understand that AutoLog is used only for trend tracking and should have no bearing on the results.

Can anyone help me make sense of this?