Unfortunately this manufacturer's sponsored forum is not the place to ask as have to respond try to find Nokia Care Point sympathetic to your cause, which is pretty unhelpful advice.
Symbian specialist until 31/01/2013 with interests in Maemo & MeeGo but an aversion to Windows!
2012-03-19 15:48 - edited 2012-03-19 15:51
Thank you for your first post and welcome to the Nokia discussion forums.
I'm sorry to hear your having problems since your upgrade but there there isn't a way you can downgrade back to Anna.
What I recommend you do is to look at the Nokia Belle support page as you may find the solutions to some of the problems you are experiencing.
Have a look at the following link:
Let me know if this helps.