I am using the card that came with the camera. I don't think there is anything wrong with the card as i can play back the photo's on the camera display. I have had messages come up telling me there are no drivers installed for this camera but at the same time I am unable to find any camera drivers on the internet. It will not let me install USB driver as it says it is not required.
I have just ordered a card reader and hope this may work where the camera does'nt.