2013-01-12 5:15
2013-01-14 20:59
Try basic troubleshooting on the phone:
1. Reboot the phone
2. If still the same, do factory reset:
Menu > Settings > Rest. factory sett>Restore settings only
This should not delete any personal information on your device. Afterwhich, try to connect again. You can also try to connect using another USB cable or another USB port.