TextRenderer antialiasing problem

I’m going to write text game, something like interactive ebook, so it gonna show text a lot. I looked around for some text renderers and TextRenderer class looks really great and simple. I have watched demos and I liked it, especially antialiased text in Chris Campbell’s Blog. I tried to write simple application, just Hello World stuff, but antialiasing seems not to work. Do I need to enable anything else except following code?


init:
renderer = new TextRenderer(new Font("SansSerif", Font.BOLD, 24), true, false);

display:
  renderer.beginRendering(drawable.getWidth(), drawable.getHeight());
 renderer.draw(TEST_STRING, textX, textY);
 renderer.endRendering();

main:
	    GLCapabilities caps = new GLCapabilities();
	    caps.setSampleBuffers(true);
	    GLCanvas canvas = new GLCanvas(caps);

There is little difference, but I think text should be smooth with aa, not just bolded a little. Any help appreciated!

Images:
with AA: http://i28.tinypic.com/2mzmmnc.png
without: http://i31.tinypic.com/15q4xuh.png

what is the state of your alphatest? and do you maybe draw the background after the text?