Changing calibration target in Eyelink

Hi there,

I am presently programming an experiment designed for babies and would need to change the traditional dot calibration routine. What I want is to change the dot into an animated image and display a sound at the same time. I want also to be able to manipulate the number of time the animation will be displayed.
I found how to display a different image in PsychEyelinkDispatchCallback in EyelinkDrawCalibrationTarget. It works, no problem. The problem come when I want to display a video instead of an image for each target: it crashes. I guess something else has to be modified but I dont know where to start... Does anyone had the same problem ? Or did its own calibration routine ?

Well, I would be happy to read any suggestion,

Regards,

Isabelle