I recently bought a used MyTouch and am trying to add my contacts... It will not save more than the first 4 contacts I put in. I have tried importing all of my contacts from my SIM card and it still doesn't keep them. Right after adding them, it will show them in the contact list, then I will return to the home screen and go back into contacts and all but the very first 4 that I put in are gone. I have re-entered them numerous times only to get the same result. Help please!