[xyphan]

those settings look correct. a problem i ran into with my Titan a while back (which it would probably still apply to the imagio) is since I didn't have a data plan, i had to disable the aGPS, essentially telling the GPS to work on its own. During the startup of Garmin, for example, it tries to download satelite information by itself with your data plan. if you don't have one, it will keep retrying, which causes the satelite lock to take much longer (10+min). Do you, perhaps, live in an area with poor data coverage? Are you using the wifi when you say you used quickGPS?

Another thing to consider is where you are when you're trying to get a lock. You won't get a very good one if you're in, say, an office building.