Nokia 5200
About saving of gprs/wap settings

Respected Sir,

I am not able to save Gprs/mms settings in my nokia 5200 phone.when i try to save the settings it shows that "Only 70 Settings can be Saved, Settings discarded"But i have deleted all the configuration settings from my phone then also i am getting this error.what is the solution for it.plz try to solve my problem as soon as possible. Thankyou