Hi there i'm new to all this!! I have a problem with a motorola V3. I bought it on Orange about a year ago since then i've had it unlocked and have been using a t-mobile sim in it since. I have just upgraded my phone with t-mobile so been the kind person i am gave the V3 to my dad who is on t-mobile pay as you go. On putting his sim in everything is fine and he can make and recieve calls but when he tries to txt it says the message inbox has to be set up? I spoke to t-mobile and they said that in the message set-up menu there was an option to input a service centre number........... but when she talked me through it a service centre option did not come up in the menu so he can't send or read any txt messages!! Anyone got any ideas!?!?!