I feel like I made a bad decision to return the Aria and got the Captivate.
I take a walk everyday after lunch at the office and use RunKeeper to keep track of my progress. When I was using the Aria, I open the app, click the start button and never had trouble. With the Captivate, I have to stand on the street corner for 1 - 15 minutes before I get a GPS fix. This is unacceptable! I tried to follow the direction of the other posting and it's not helping much.