want to restore a check box in Outlook Express .... HELP!

Hi:

O/S XP, Outlook Express 6.

Once you compose an email message, then save it, by default, a box pops up telling you it will be saved to your draft folder .. with a check box option
not to see the message again.

I was clicking too fast and checked that box by accident …. And I want the
pop up prompt back!

Anyone know how I can reset it so that the prompt “message is saved to your draft folder” comes back?

Thanks!

d