Also, random useful tidbit in case anyone cares:
You can check to see if your library actually has Advantage titles at
http://yourlibrary.com/ODAdvantage.htm (or org or whatever)
Like
http://hadc.lib.overdrive.com/ODAdvantage.htm -- apparently we do, although I haven't seen them and can't figure out how to specifically search for them. But I'm paranoid I'll miss books so I keep the login configured.