A few days ago I bought a Pentax Optio A20 digital camera. Five to 10 minutes after switching the camera on the access light starts to flash orange. While it is flashing orange all functions on the camera freezes - even the switch off button. The flashing goes on for quite some time before the camera rectifies itself. Besides pointing out that the light is called an Access Lamp (page 11 in the Penax Optio A20 manual) there is no other information in the entire manual about the lamp and its functions. Have I bought a faulty camera ? What is wrong with the camera ?