I understand Motorola Droid/Milestone users have had a similar problem, but has anyone experienced this on the Samsung i5700? I picked it up on 3 UK PAYG just recently with the i570EXXJC1 baseband and 2.1-update1 firmware preinstalled. There is very little branding from 3 so I'm not sure if that's the problem. I have tried the usual hard reset to wipe all installed apps off, and combination's of resets with and without removing the battery to no avail. I have tried with the original version of maps and updating from the Market. It does not appear to be a hardware problem as maps and GPS Status happily get a lock (as many as 10 satellites at a time). For some reason it is only the navigation function that struggles. Although ironically it does update the screen with my position and the marked route turns from red to blue... all while searching for GPS The only indicator missing is on the top status bar, the arrow icon remains gray. Is it worth using Odin and reflashing the firmware that way? Or should I hang on for Google to update the beta some more? Thanks in advance for any help or advice!