asterisk users - Jul 2005 - Tormenta 2 / E400P cards in AMD 64 bit machines

Hi,

Is anyone currently using an E400P card in an AMD 64bit processor 
machine, running a 64 bit version of Linux? I just tried testing my R2 
software with this setup for the first time. The CAS signaling bits are 
sent and received OK, but so far I seem to get no audio transmitted or 
received.I am using zaptel 1.0.9

Regards,
Steve