net.java.games.jogl.GLException: Unable to create

[BMan]

Hi all,
I can't figure out what's wrong.  I had everything workin in Eclipse for different projects/tutorials.  Then all of the sudden nothing worked.  I did not make any changes at all.  I'm getting the following...

net.java.games.jogl.GLException: Unable to create OpenGL context
     at net.java.games.jogl.impl.windows.WindowsGLContext.choosePixelFormatAndCreateContext(WindowsGLContext.java:310)
     at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.create(WindowsOnscreenGLContext.java:204)
     at net.java.games.jogl.impl.windows.WindowsGLContext.makeCurrent(WindowsGLContext.java:129)
     at net.java.games.jogl.impl.windows.WindowsOnscreenGLContext.makeCurrent(WindowsOnscreenGLContext.java:110)
     at net.java.games.jogl.impl.GLContext.invokeGL(GLContext.java:199)
     at net.java.games.jogl.GLCanvas.displayImpl(GLCanvas.java:182)
     at net.java.games.jogl.GLCanvas.display(GLCanvas.java:82)
     at net.java.games.jogl.Animator$1.run(Animator.java:104)
     at java.lang.Thread.run(Thread.java:536)

I checked and it looks like all the jars are in the right place, etc.  Has anyone had this happen to them?  It would be one thing if I was dinking with stuff, then I could undo it at least, but I haven't changed any configurations.

p.s. I'm using Eclipse 2.1, and j2sdk1.4.1_02.
Additional info:  On simple ones like Lesson04, the screen comes up, but it's just white, although the title is right.  For more complex ones, nothing comes up.  

Thanks in advance for the help!!!