Im trying to transfer files from my computer to my phone using the usb cable. ive figured out the mp3's for the mp3 player, i just cant get the ringtones to transfer. actually, what im doing is placing mp3 files into the ringtone file once i hook up the phone to the computer. i also tried an aac file. they were both placed into the ringtone folder on the phone. they dont come up on the sounds screen. could it be because the file is too large? please help, thanks.!