I have a Lava Xolo X900. Whenever I try to access my photos on the android gallery it does not open and comes up with the message 'Not enough memory. Delete some items.' I do have enough memory and I can still access my photos through going into the camera app and going back through them all. The gallery used to open occasionally after I tapped on the app a few times but this has stopped. It may have possibly started when I bought an SD card. What do you think the problem is and what can I do about it?