So I downloaded the software and map for Pakistan on the SD card but when I insert it into the navigation system, it initially reads the card and takes me to the folders. When I click on Setup.exe, it does not do anything. It simply reverts to the main menu and then when I try and select Navigation option from the home screen, it does not do anything at all.
Any idea what's going wrong? Card is fine as it is detectable and I can see files in it on my laptop.