my son has the Dopo 7" Tablet and I bought him an 8gb micro sd card so he can have more space for his apps and games. only nothing will save onto the card. I ask for the app to move to the sd card and says it does. but the tablet still says it has no room to download anything. it allows 2 games but that's it. how can this be when I have an sd card for him to save to? any help would be greatly appreciated.