Me and my friend have just got one of the above phones, and mine seems to be going good so far But my friends doesnt seem to want to connect to the computer......My phone works fine on my main computer and laptop.....but her phone wont work on her computer, or my two either! Tried different cables and USB ports etc but to no joy. When hers is connected, it does say chrging on the screen, so is getting power.....but still cannot access it!

Any ideas please?