Hi I recently put my first ROM on my galaxy tab 10.1 16 gb and I wasnt thinking so I didnt have a stock backup on the memory. I put the CM9 nightly rom on it and now I would like to go back to stock but no matter what I do I cant get my computer(I tried mac and pc) to get into connection with the TAB. When i put it into usb mode it just shows a basic galaxy tab 10.1 on it but doesnt let me put files on it. Please advise me how to get back to stock!!!!!!!!!