The PureImmediate.java demo supplied with Java3D package usually ( ran once out of 6 tries ) hangs at the call to GraphicsContext3D.clear() when running as an application. I havn't noticed this problem when running as an applet through appletviewer. Any ideas why this occurs? ===================================================================== To subscribe/unsubscribe, send mail to [EMAIL PROTECTED] Java 3D Home Page: http://java.sun.com/products/java-media/3D/