Java 3D problem with OpenGL?

hi,

I have downloaded ‘java3d-1_3_1-windows-i586-opengl-sdk.exe’
and installed.
When run the demo according to ‘README.java3d.win32ogl.txt’,
I got the following error message:

‘java.lang.UnsatisfiedLinkError: no J3D in java.library.path’

‘README.java3d.win32ogl.txt’ said that this might ‘because OpenGL and/or the OpenGL GLU utilities are not installed on the machine’.

However, how can I install OpenGL and/or the OpenGL GLU utilities in my PC correctly for Java 3D?

Thanks for any help.