its recently brought and works fine with internal memory .then i purchased an scandisk 2.0 gb SD memory card , however when i put it in th card slot the camera beeps on, however th screen does not light up at all.and th red button at th front stay lit with the shutter open or shut...the nly way to get th front light off then is to open it up , take out th battery and pop it back in and everything works fine again... Without th memory card everything works fine . whats wrong?????