I want to announce my game Step-By-Step.
Step-by-Step is a simple brainteaser where you have to clear all colored tiles by stepping over it. Dependent on the color of the tile you must step 1-3x over it to make it disappear. Game contains 99 levels and a separate level editor.
It is hosted on Sourceforge:
-manfred
Here is a screenshot:
Looks really nice.
Web start maybe? 
It prints
OpenGL pipeline enabled for default config on screen 0
and shows a window which does not draw any content but keeps what ever was on the screen before 
(WinXP, JDK1.6)
sounds like it must be a good game. let me play first…
Err hate to report this but I downloaded it, ran Step-by-Step.exe, and it started displaying a window then froze up my computer. I could move my mouse but the cpu seemed entirely occupied, and after a few minutes of unsuccessful ctrl-alt-deleting I just had to hit the power button.
I might try it again later with the jar, see if I get a different result.