drop down list box population in sharepoine designer 2007

Is it possible to populate the values in a drop down list box with the uniq开发者_StackOverflowue values from a field in a custom list from the site ? if yes, how to do the same?

Once i insert the DropDownlist, right click gives a Choose data source field, but not finding a way to connect to the list defined in the site :(

---

you have to create a data source first on the page Youtube link