What's wrong with AWT cursors on Windows Vista?

Question

I'm getting a weird problem on Windows Vista as I'm trying to create custom cursors in AWT -- the ones you create with the createCustomCursor() function in java.awt.Toolkit, that is.
The problem is that their hotspot point is offset quite a few pixels to the down and right, leading to quite confusing effects. I'm not at all seeing the same effect on either Windows XP or on Linux with X.org (though on the latter, Sun's X11 toolkit seems to limit the cursors to two colors, but that's another problem). Is this a bug, or am I really doing something wrong?
I'm using the following function to create a cursor:
    private static Cursor makeawtcurs(BufferedImage img, Coord hs) {
     Dimension cd = Toolkit.getDefaultToolkit().getBestCursorSize(img.getWidth(), img.getHeight());
     BufferedImage buf = TexI.mkbuf(new Coord((int)cd.getWidth(), (int)cd.getHeight()));
     Graphics g = buf.getGraphics();
     g.drawImage(img, 0, 0, null);
     g.dispose();
     return(Toolkit.getDefaultToolkit().createCustomCursor(buf, new Point(hs.x, hs.y), ""));
    }

Answer 1

Please ignore this topic. I found out that it's not actually the cursor that is wrong, but rather the window size calculation. On Vista, the window becomes larger than I request, and therefore the window coordinates don't match up against my logical coordinates.