Arduino with gsm sim900 problem

Hi, I use arduino with gsm shield and when i write a lot of methods so program is stopped and gsm shield is shutting down after some seconds(methods is never used). When I deleted some methods, program runs as it should.

Glad you were able to fix it.

May be your Arduino SRAM Memory is full. Please see the link below

http://arduino.cc/en/Tutorial/Memory

Now How to know, How much of your SRAM is being used. That I Really do not know.

Cserge