Hi, I have a Motorola Atrix 3G (it's the version from Argentina, but I think is practically the same of the USA one, except for the network). I have this problem when I hook up the USB cable to transfer files to the PC after a couple of seconds I get the notification ringtone and it says "SD Card Unmounted", which is fine, because it's supposed to work in the PC and not the phone. However, I see both drives in the PC (internal and external storage) and I can only access the external one. The only way to see the internal one is go to settings, and mount the internal SD Card manually. After that's done, a couple of seconds the card is unmounted again, only that this time, it works fine on the PC. It's really annoying to do all that every time, does anybody have a solution for this problem? I'm always using Mass Storage, and I've tried this in different PCS and rebooted the phone several times. If I select "None" then I see both drives in the PC, but I cannot access either one. Any suggestions??