07-23-2012 12:23 PM
Hi and Welcome to the Community!!
I suggest the following steps, in order, even if they seem redundant to what you have already tried (steps 1 and 2 each should result in a message coming to your BB...please wait for that before proceeding to the next step):
1) Register HRT
2) Delete and Resend Service Books
3) Batt Pull Reboot
Hopefully that will get things going again for you! If not, then you should dig around to see if the icon is either hidden or moved to a different folder (or perhaps both).