I can't get the micro SD card to stay in my new woot gTablet--it just springs back out when I push it in. How do I get it to lock in or catch inside the tablet? I called support and they verified that it should stay in, and Woot sent me a replacement, but this one does the same thing! What's the trick??? And if I hold it in with my finger, the gTablet recognizes it and it works great.