There is definitely something wrong going on. I get the same thing happening in Windows as well.
I have a macbookpro from 2009 (macbookpro5,3 is the model identifier) with dual graphics card nvidia Geforce 9400M, and 9600M GT, running 10.6.8 and Windows XP, and Max 6.05 (happens with both graphics cards).
No errors in the max window apparently, but it seems to be a typical opengl overflow issue? The fan even starts accellerating on this super simple patch.