Advice for non showdown winnings

I was analyzing my stats in holdem manager and I noticed that my Non Showdown Winnings display as a straight negative line. Obviously I have a leake here. Can you please give general advice on how to interpret this graph and how I can solve this leak?

http://www.deucescracked.com/forums/2...D-winnings-hubbub-?page=1#posts-85420

Read hands better and learn to win pots without having a good hand, ie learn to bluff when the opportunity presents itself (and it is, you are just missing it). There's no easy answer to this question besides improving your hand reading, learning how opponents tend to react, then exploiting both of those factors will different types of bluffs.

http://www.liquidpoker.net/poker-forum/608951/non_SD_winnings.html

First page is full of lulz, but the second page has some good info.

http://www.liquidpoker.net/poker-forum/608951/non_SD_winnings.html

edit: too slow ;>