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#21
i done the exact same thing (but i did not have any old files) i have lost a crap load of important emails, like subscriptions and current ebay emails. all....gone.
im not sure where it saves the files/emails maybe try googling it and see what you find. i think its stupid how it fetches them from the servers, it should copy them so it is still in the server and on your pc that way if you do format ect. you dont loose all your emails! oh well. let me know if you find out where it stores them, i would be interested for future reference.