I just had my LG Optimus C arrive today, and when I plug my USB cable into my computer, it isn't being recognized. At first I heard the sound that my computer has acknowledged hardware, but now I don't. I have tried unmounting and remounting and unplugging and replugging. I just don't get the icon in the notifications bar whenever I plug it in/mount. I think I'm just going to try restarting everything after this. I have Windows XP SP3.