Pls consider additional sources on the bottom of this entry

to associate your dropbox folder with a grading items, go to your dropbox module

select the dropbox folder and click on edit folder

scroll down and choose the grading times, which needs to be associated with that folder.

Additional resources:

http://www.youtube.com/watch?v=_U_gz-Nep2I

Grading a D2L Dropbox with a Rubric http://www.youtube.com/watch?v=VP-_RNiRV-k

D2L Dropbox: Creating a Dropbox Folder

http://www.youtube.com/watch?v=TW7n6NJqLOs