fck, my first thought was to reinstall symbian... ohwell... but did u performed the deep-reset? maybe u have just restored factory settings... cause this very seems like a soft problem...
Code
The deep-reset - the method of performing a hard-format, i.e resetting it completely to factory defaults and removing all data, is as follows:
1. Switch off the phone.
2. Hold down the following three buttons: Green (call answer) button, * button, and ‘3′ button
3. While holding these buttons, press the power button and switch on the phone
4. When the message ‘Formatting’ appears on the screen, release all of the buttons
Note that you shouldn’t switch the phone off or remove the battery when performing either of these operations, and it’s advised that the handset has a reasonable amount of battery charge before performing a format/reset. As data will be lost, you are advised to perform a backup first
Read more: http://redpepper007.ucoz.com/news/2008-11-18-21#ixzz0cJUjo4RF
kiki
redpepper007
Swapz
i guess u better do deep reset and if it doesnt work ...go to nokia care 
