my external harddrive was working fine recently and today i was planning on rebooting my computer, so i stored all my files onto it and deleted the files from my computer, then as i was putting the last folder into the harddrive, i got some error saying file wasnt saved or something. then the harddrive wasnt working properly so i removed it and plugged it back in. then nothing happens.. i waited a couple hours and checked the forums and still found nothing. then when i tried again, this time the hard drive showed up but there was nothing in it, and theres no room to put anything into it. it jus a empty folder in there with no room to store anything, i had about 220GB of files and stuff in there and ive had it for 3 years now, is there anyway i can retrieve the files or is it all gone? plz help. thanks in advance..