I need help here.

My Google Latitude is acting strange. When I opened the application, I can only see myself and not my friends. It's not like they're stale for a long period of times. Some of them has just updated their location and I still can't see them. To see their icons on the map, I had to go manually into the friend list and pick them up, after that, it will show up in the map but will dissapear again after a reboot.

This only happens when I upgraded to Froyo. By the way, I've tried hard reset (clear cache and all), but it's still the same.

So, does anyone has any idea on how to help me?