Kirk,
Yes, that works, however if you're sending say 15 emails, it's quite a bit of extra keystrokes, when you're on deadline.
Outlook Express apparently doesn't work in 64 Bit, so it doesn't work.
If there is an implementation of TB that works, it would be great to know, so Woodie, how have you got Thunderbird and PM set up?
Can you confirm that you can access the TB address book and generate emails with the addresses already filled in?
As was possible with Windows XP and also on a Mac.