Hi! There is the file RomePlugin.bundle in one folder of the 4.2.1 VM. When I execute "RomeDemo drawCar", I have a rollback saying a primitive has failed. The guilty call is: -=-=-=-=-=-=-=-=-=-=-=-= RomePluginCanvas>>primOpen <primitive: 'primitiveOpen' module: 'RomePlugin'> ^self primitiveFailed -=-=-=-=-=-=-=-=-=-=-=-= The following is displayed in the xterm: Squeak-Rome: canvas oop invalid! Anyone can help? Cheer, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.