[Twisted-Python] Passing number -2147483648 crash twisted

I am using twisted spread to pass large numbers between client and server. Everything works ok, except when I try to pass the following number: -2147483648. This causes to crash twisted, and the task administrator in windows xp, shows the use of virtual memory increases to the maximum. No exceptions nor error messages, simply frozes. In the Banana specifications, -2147483648 is the limit of the negative numbers allowed, but is included. I am using twisted 1.3.0 and python 2.3 in a windows xp (both client and server). Any suggestions?