Hi I had this same problem-
This is a t-mobile issue only on the 8900 you can do two things
1) look for the word "idioma" on the BB and click that it is Spanish for language and set to english.
2) if you don't see that log into my tmoble via your pc. Make sure your BB is shown as your phone, (pic on the top) then scroll down to the bottom and click on set up internet preferences. This will take you to a page in spanish just like on your phone.
This is where you set up an email account.
put in your email address in the first box and your password twice in the next two boxes then click the second button.
Once you do this you will go to a settings page still in spanish but the word "idioma" will now be there,
click that and then set to english and you should be good to go. If you ever see "idioma" on any screen click that and set to english.
If you have probs call t-mobile and they will walk you through it.
