PowerShot Pro1 Model PC1057 Digital Camera. Once switched ON unable to take pictures, following is displayed: 1. On the LCD displays "Memory Card Error". 2. Display Panel: Full Battery/MS/AWB/CF Used another camera to check the Memory Card and it works. Tried switching it on and off but nothing seems to work, also performed the "Formatting a CF Card" but to no avail. Any help is greatly appreciated.