John, I admit, the example is not the simplest possible that exhibits the problem. Using a button instead of a menu would have been simpler. However, the purpose of the example was to create a simplified mock-up test case that exposes the same problem as my real app (where indeed I'm doing something with the canvas3d created!).
To add another data point: the problem doesn't occur on my machine at work where I'm using the same operating environment (JDK142beta, J3D ogl 131FCS, Win2k), but different hardware (PIII 933, nVidia Quattro2). H. =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff JAVA3D-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".