TB not displaying Sent Items folder

Hi, people!

I am new to the group. I tried to set up TB 9.0 to manage a Hotmail
(or Windows Live, as you like) account. I have Webmail + Hotmail
extensions updated to the last release. I succeeded with Incoming
mail, but failed with the Sent one.
The Sent Items folder is not showing and I can't send mails from TB.
Anyone can guess what's going on?
Thank you!