05-15-2011 04:10 PM
If you're still having trouble with GPS, make sure you give it adequate time to download ephemeris data from the satellites, especially if you haven't used it for a few days or if you've changed locations much since the last time you used it. This process appears to take well over a minute, in some cases several minutes.
Also critical, perhaps, is that the GPS antenna appears to be located in the lower right corner of the device. If you're holding it fairly tightly in your right hand, or otherwise blocking that corner much, you could be significantly affecting the readings.