To be able to send an e-mail to a mail address, you must either first go to Address Book. You can also start writing an e-mail and then when you want to get the mail address from the address book (Tools/Address Book), Thunderbird starts a new mail again. I do not understand this concept. In Outlook you can write the mail and then click on the 'To' button at the top of the address bar and it opens the address book....Bingo. Simple and comfortable. Could you implement it like that? Otherwise Thunderbir is awesome....
