wim66 wrote:[color="#FF0000"]I feel very silly[/color] because I have quite some experience with Computer, Smartphones, Satellites, etc. but I am about to give up.
[color="#FF0000"]No reason for that[/color], and no reason to give up...we'll figure it out!
It sounds to me like you have Primo 1.1 and it was originally on the system in Thai and you want everything within the navigation program to be English.
In that case, I would suggest you download the COMPLETE setup from Chas521 here:
http://www.navitotal.com/showthread.php?5500-November-Primo-1.1-from-my-deviceBackup what you currently have on your SD Card (the entire "IGO8.8" folder) to your computer, then delete it completely from the SD Card. Copy the full Primo 1.1 install from Chas521 to the SD Card, change the "Navi Path" on the device to now point to the new install. Copy the maps, POI, or other local map content you backed up from your old install folder to the new one on the SD Card, start the program, and see if you now have what you want!
If you have any trouble with getting a GPS satellite lock, etc with the new program, post back and someone can help you with that.