When I startup Max 6.1 in 64 bit mode (OSx 10.8.2, MacBook Pro and Mac Desktop) and run the pasted patch that takes in Razer Nostromo gaming keyboard scrolling data and translates to MIDI control values Max renders this message:
from the left output of [hi]
I guess this is something related to int32/int64 compatibility? 4294967295 is maybe something like -0.999999999?
I am unable to reproduce the behavior without the gaming controller, ie a message of 101 -1 sent to print yields 101 -1.