UPDATE: Although I just found on http://java.sun.com/products/java-media/3D/java3d-bugs.html Core Bugs (j3d and vecmath) 4359764 Java3D do not support > 32 canvas This is fine by me... 32 is enough HOWEVER, it still doenst explain why I'm getting an error with only 4 canvases I couldn't find the info in the archives about the possible problem with multiple SimpleUniverses. So if anyone could shed any light on the matter I would be grateful. Problem still stands, Spencer PS sorry about the length of the last post -----Original Message----- From: Discussion list for Java 3D API [mailto:[EMAIL PROTECTED]] On Behalf Of Spencer Goh Sent: 25 August 2001 18:36 To: [EMAIL PROTECTED] Subject: [JAVA3D] Canvas3D in JInternalFrames on JDesktopPane: Explain the stacktrace / BUG Hi there, I'm getting this error which is a huge problem as it completely kills my application and I don't know what to do. Submission deadline for my work is in just under 2 weeks and this is the last major problem I have. I can greatly limit my program to 4 internal frames to avoid this bug, but this is not at all desirable. =========================================================================== 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".