you've probobly got a branded phone, I did and been trying to de-brand it for a couple of days now (vodafone) but it should be much easier, if you do want to update manually,just go to Menu>Settings>About PhoneSoftware Info, In the software number give me the number you have, for me it is 1.24.161.3, for me this is very bad, if your is lower, post it onto here and I'll fine the correct RUU file you need