Problemas para cargar programas

Hola a todos, estoy intentando cargar un programa en la placa arduino duemilanove con atmega328 desde un notebook con windows 7 profesional, y me envía el siguiente error:

avrdude: stk500_getsync(): not in sync: resp=0x00 avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51

que puedo hacer?

First thing to mention is that this is an English language forum, not Spanish.

The second thing to mention is that there are probably something like 22 requests a week for help with this error message. Surely one or more of those threads will contain some suggestions of things that you need to check.

Thanks for your reply, I apologize for writing in Spanish, I will review the post indicated, thanks.