Also, did you go into the settings for the app and set a sync refresh interval for automatic updates. The method listed above is for manual refreshes, but you can set your refresh interval from 5 minutes to 4 hours in the settings, and have to make sure that Sync Twitter Data is selected (at least that is an option for the Droid X Stock Twitter app), you can also select what notifications you want. Hope this all applies as I just realized you are referring to the Original Droid, but thinking the stock twitter apps may be the same.