Ex-G1 -After taking a video, pictures get erased....WHY????? I have the Ex-G1 & I LOVE this camera, only problem with the camera is after recording a video the camera erases the previous pictures. Yes, i have changed the memory card..still happens... Has anyone else had this problem?? I sent it back to Casio and they say they changed the circuit board. Still happened...I just sent it back again... Any ideas on WHY this would happen?? Thank you!