I have an Acer Iconia A100 7" tablet, and love it, but am having a storage area problem. I have a 32GB card (/mnt/external_sd)added, and the memory programs say that it has 8GB free, but that the internal storage (/mnt/sdcard/) has 12.8G, and only 474 MB free. I then get "out of memory space" warnings sometimes, and have had to delete some apps, most of which take up very little space anyway. The memory inventory programs show: [HIGH] system Data = 9.8 GB Media 772 MB Apps 1.7 GB Android 277 MB ... nothing else very big Free 474 MB.[/HIGH] What is the main space item "system Data", and what can I do to optimize of reduce it?