Maybe the TS can add these tweaks to the front page. Its for the GPS.

A. With Advanced config 3.3

1. disable A-GPS
2. disable GPS logging
3. logfile name must be empty
4. old logfile name must be empty
5. maximum size of logfile must be 0
6. delete the files :
\windows\GPSLogFile.txt and \windows\GPSLogFileBack.txt

With those changes car usage will be quite perfect

B. Then edit registry with TotalCommander
Under: HKLM\SYSTEM\CurrentControlSet\GPS Intermediate Driver\

Drivers\GpsOneDevice\PollInterval -> 100 (default is 1000)
Drivers\InputBufferSize -> 512 (default is 4096)
Drivers\OutputBufferSize -> 512 (default is 4096)
Drivers\SleepOnNoData -> 100 (default is 1000)
Multiplexer\MaxBufferSize -> 512 (by default not present, you have to create it)

Credits go to XDA-devs.

Created a .cab file for the tweaks above and attached the Advance Config Tool v3.3 from Schaps (www.touchxperience.com) for your convenience. Just install the Advance Config.cab first and delete the 2 GPSlog files. Then install the GPS Tweak.cab for the rest of the registry tweaking.

Enjoy.

Credit goes to Schapman(French) and XDA-devs.

 Advan_Config_Tool___GPS_Tweaks.zip ( 284.25k ) Number of downloads: 7

New unit, my friend just bought on friday, 1840, with bluetooth and 2 yrs warranty from SIS malaysia..

I suggest you turn on your Garmin and just leave it in the open, for at least 5 mins. Dont move it around. Leave it on your car or outside with clear sky. Should get it within 5-10 mins.

Read this,

http://forum.xda-developers.com/showthread.php?t=410150