rpmemo and rpmsg demo code does not work.

[cowcow]

I tried the sample codes in mikro directary. Most of them work well, but when I tried rpmemo and rpmsg, it does not work. After I download the program, nothing happen. I read the instructions and press the keys/ buttons. It does not give me any reponse. It should record my voises or say something, but it doesn't. Do anyone know what should I set up the program / the development board. (I check the development board and I don't think there is anything wrong.) I did change any demo program yet.