Dear COMPARE users and developers.
I have a question regarding the unusual output I get after building the classifier... All preprocessing steps were performed using new "Hammer Suite". My input to classifier - 26 pairs of RAVENS maps (GM+WM). Everything went almost completely good except one thing... The matter is that after classifier creation I am getting very strange spatial maps. They look like four sets of bricks distributed in corners (attached)... Everything is ok with test data.

What could cause this problem?
 
P.S.: I'm running COMPARE on 64-bit CentOS 5.5.