It should work. My explanation below assumes some knowledge of your computer

...otherwise you'll be lost.
You'll need to go to the directory you installed DA:O to. Look for the "bin_ship" folder. Inside that folder there there are two files: daupdatersvc.service.exe, and daorigins.exe. Right click on each file, select properties, and set "Run this program as administrator." I don't remember specifically in properties tab for vista it is, but it should easy to find.
The problem CAN be the result of the DAUpdater service not starting due to any number of reasons firewalls, virus scanners, blah blah. Once you made the above changes, start the game again. Alt & Tab out to your desk, use task manager, look at services tab, make sure the service called "DAUpdaterSvc" shows "Running" under status. If so, go back to the game, go "Downloadable content"...you may have leave/comeback once or twice, but your items should show up. NOTE: it can take a minute or so for the service to start.
EDIT: If the service is not running in task manager, you can manual start it but by right clicking and selecting "start service"
Modifié par jshunt01, 20 avril 2010 - 02:23 .