Can anyone who has updated the nav pro with the new May 2014 update check the version number for me please. Put the SD card in to update mine and it took ages to get to 18%. Went into the house for ten minutes and when I went back out the screen was off. Normally takes an age to update so I checked the version and it looks like the same as before and now when you try and update it keeps saying it can't read the medium.
