[jitter] Max Crash using reacTIVision and jit.gl.render

Hello all,
I'm trying to use the very usefull reacTIVision (1.3) app utility to control widgets in an OpenGL world . 

It's just a work in progress and it seems to work fine but I am facing crashes !!!

Can someone please have an idea about the possible reason of those boring crash !!

I join my patch and the javascrit file for investigations.
I've tried Usb Webcams : a Philips one external or the Isight internal one . 
I've not yet tried firewire cam. (May be USB is an issue ... ) 

I'm using a MacBookPro 2.33GHz, 3GB of memory, Mac os X 10.4.10 , Max 4.6.3 with up-to-date Jitter, 

thnaks a lot !!
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