Ok this is the problem, in the first time i add gmail account on The Bat! is get all the messages on my gmail and attachments too. All is fine.
Now i uninstall The Bat! and install it again, all the options is lost. And of course the messages too. So i add  the gmail account again but now is only check for new messages he not download any old message.

There is a way to download my messages from Gmail into The Bat!?

Very Thanks!!