hi the phone has been ok for a week then again yesterday i went to dial a number it says action then my pad vanishes from my screen this happended when i first got the phone but after following a tut here it looked to be ok then yesterday i lost it again i can press on my list of freinds and can call from the list but not dail a new number any ideas why this happends and how i can correct this thanks for any one in advance who can help