As of FW version 5.10 (June 8, 2009), your nüvi 255W is capable of recognising map files larger than 2 GB.Quote:
Originally Posted by kel@thailand [Only registered and activated users can see links. Click Here To Register...]
Latest FW version for this GPS model is 7.60 (March 2, 2012).
Update your nüvi with either WebUpdater or Garmin Express.