N80 - help!!!

[xrium]

I found my N80 having problem when I received my sms message after switch on my phone.
example :- I off my phone whole day, and my friend send me sms yesterday. I received the sms today. The message detail showing the date and time at current time and date. Why not showing the actual date and time sent by the sender?
My others nokia phone work well although i switch off and received message when turn on.

I reflashing my N80 to current firmware also having the same problem..

NEED HELP PLEASE..............