Simulistics

Adding an image for the background of a submodel works, and I can save the model, but when I try to open the file by double clicking A window appears with the message "Co-ordinating model information", and Simile locks up.

If I open Simile and then open the model I get the error "Simile encountered an unexpected problem:
invalid command name "backgnd0".

From forum post images-submodels.