I, too, was unable to duplicate the problem. I checked for any relevant registry settings and found none. I also checked for external dependencies and found only one: opengl32.dll.
I was unaware of the limiter.cws config file until Steve mentioned it above; his are the same values I have in mine. It wouldn't hurt anything if you were to experimentally set the EnableOpenGL value to "0".
EDIT: Oops, looks like you were already trying that while I was typing. If you have an open support ticket for this, I'm sure the guys at CW would love to know that AL has an issue with OpenGL.