No incoming calls, text or Vmail.

[derick_2002]

One day i stopped getting incoming calles text or vmail. however i was able to still get all my email and i was able to call out and send out texts. i brought my phone to sprint and they had to replace the phone. They told me that the Advance Task Killer which is why it happen. then i downloaded Advance Task Manager and i stopped getting incoming texts and calls again. i removed it and now my phone is fine.

Is anyone else having this problem? i want to know what i can do to keep the Task killers.