Graphics2D, image is over colored on screen ?

Hello,

I have boardgames on a build, i have following error image from user : http://temp4323.dy.fi/images/error.png ( image is large 1.7m, sorry )

Why RGB(255,255,255) color is over coloring on screen, the soldier chess pieces are identical in graphics card memory, on screen the images has different errors on every chess piece.

I have Applet - Canvas - Bufferstrategy, images are compatible BufferedImages.