Make sure that your phone is running the latest software. You can find out more about the software changes for Nokia phones here.
- When will Lumia Black update be available?
- What content can I copy using Transfer my Data app from an old phone to my new Nokia Lumia?
- Emails sent with my Lumia do not appear in Yahoo! Mail
- How can I transfer my phone data onto my new Lumia phone?
- How can I get the Transfer my Data application on my Nokia Lumia with Windows Phone 8?