Winnings For Month doesn't match up with Daily Results Graph for some sessions.
It looks like one window has been set to read the time on the HH and the other is set to read the computer time. It seems to be a problem with any sessions going past midnight (UK time).
For instance, it says that on Feb 24 I played 1k hands, but the daily results graph shows only ~100 hands.
Then, on Feb 25 it says I played 1200 hands, but the daily results graph shows over 2k hands. It picks up the hands played after midnight the night before.