How do you get to the SMS center number on your phone????

how do you get there??? wut do you press on ure cell do change it??How do you get to the SMS center number on your phone????which phone do u use? usually i go in MESSAGING---%26gt;OPTIONS---%26gt;SETTINGS---%26gt;TEXT MESSAGE---%26gt;MESSAGE CENTRES and change the number;-)

networking

problem with my pc lagging