Hi, I have the Acer Iconia A500 tablet. When I go into settings, storage it says for internal storage that there is 12gig used and 0.90gig available. But when I add up what is used by apps, music, pictures, etc, they only add up to 3.5gig. I have also gone through every folder I can see and cannot find any large files. Any ideas on how can find out what is eating up me storage?