Hi, Today I un-mounted my external SD card, inserted the one from my camera, copied the files, unmounted that and reinserted the original card. I then noticed a bunch of apps were broken. Clicking the shortcut gave me an "app not installed" message, and looking in the app list showed similarly-named apps starting with pl. The effected apps were all ones that the tablet had decided to install on the "internal usb". Now I know that on phones, removing or unmounting an SD card will break any apps installed on it, but no apps were (or can be) installed on this SD card. Any ideas? 16gb model, ICS, not rooted. It's getting irritating having to move apps the tablet decided to put on "internal USB" back onto internal storage.