Problem with Atmega 644 Programming

Hi!, i´m new on this forum, my name´s Alvaro and i´m spanish.

 I need some help with Ponyprog programer and a new ATMEGA644 20PU, 
trying to program with a ATMEL evaluationboard 2.01 ( from Pollin.de), 
via ISP, com 4

 I´m going to describe exactly my problem

 I´m developing a aplication to control a Satelite receiver, i was 
working with an ATMEGA32 and all were fine, i can program it with 
Ponyprog and my programmer, but now i need more memory , so i toke a 
Mega644, when i received it, i recompiled my code to this micro and try 
to program it (It has the same pinout that ATMEGA32), but ponnyprog says 
to me "Device missing or unknown device (-24)", i tried all, try to 
change the fuses ignoring this message, try to program ignoring this 
too..., finally i take a new ATMEGA644 thinking that maybe the micro 
what it´s damaged, but with the new one i have the same error...
 Actually i can program with the same programmer and software my MEGA32 
without any problem, but no the AT644....

 I´m doing something wrong??, i don´t have any idea what´s happening..., 
so please help me!!

 If it helps, this is my programmer:
 www.pollin.de/shop/downloads/D810038B.PDF

 Thanks!!!

 Alvaro