Hi Tony I tried it on save to screen also and it worked fine so maybe as you say saving to disk is the problem. I have not used mutipass before so I am not sure of the whys and where fores of it, but I'm sure you are doing nothing wrong when saving. While I am waiting for your file I will try the test scene here again but this time I shall save to disk and we shall see what the outcome is. I have just sent you an IM with an e-mail address that should let me receice your file. Will get back to you shortly.