Typing in the To: field (an OS 4.1 feature), you might be encountering a BlackBerryOS bug. OS 4.1 devices should let you type new addresses in the extra To field.
What model and BlackBerryOS (Options->About) are you using?
Originally Posted by balistik1
When trying to compose an email, it won't let me type in the To field. What can be the cause of this?
If I choose an address from my address book, it does but the email address in there but then I see two To fields one of which I can't enter information into.