I have a HTC Desire C and am encountering an error message whenever I try to take a screen shot (by pressing the power button and home screen button simultaneously). I receive an error message saying 'an error was encountered with your SD card', but I do not have an SD card. Also, my camera settings show that storage is set to phone storage. I have tried resetting my camera to factory settings, and then I get a message saying 'your storage card is full or unavailable, storage has been switched to phone storage' but the same problem persist. Could anyone advise on what I should I do to rectify this? Thanks.