Nokia N70 / Nokia N72
Dialed number, received & Mis call does not shown

I have purchased n 70 & my bother n72 but many times it does not shows dialed number, received and mis call.

Whats a problem we can not understand, every time "to show dialed number, received & mis call we make resetting of phone ". What should we do??? We want a replacement n70.

What is use of phone n70 it does not shown number mis call received, dialed number, received call, offen it create same problem.

My friends & my g.m. of suzlon also have the same above problem in n70, what should we do???

pune, india