I got my Galaxy Ace from HK today and I tried to connect it to the PC for files/contacts transfer. When I plug both sides in, the phone charges, but my Win 7 64bit doesn't detect the phone. I've searched online, and people say some kind of USB authentication is supposed to pop up on the phone, but I've waited for over 30 mins, and tried reconnecting it a few times, nothing had worked. Any help would be appreciated!