This should get it going. Follow instructions exactly.
>This problem is with nearly every unit and at last we have found that
>this problem is simply caused by the addition of an unnecessary file.
>
>If you have not done so already please insert the SD card and go
>through the full install procedure selecting "Yes" and using the
>"Device" for install.
>
>If after this point when you run TomTom you find that the program
>flashes and then closes you need to do the following:
>
>Goto "Start">"Programs" and select "File Explorer"
>
>Select "My Device" from the drop down list and locate the "Program
>Files" folder. Within this folder you will need to locate and open
>"Navigator".
>
>Inside this folder should be 3-4 files, you will notice a file called
>"Navigator" which does not have the red TomTom hand logo next to it-
>"Navigator.cfg"; Delete this file.
>
>
>Now go back to open TomTom from the short cut on the main page.
>
>You should find this now works.
>
>When asked to activate the product please follow steps carefully
>
>Do not activate product yet. press manual activate but at first DO NOT
>activate the code with this an enter a fake code, i.e just enter one
>letter.
>
>At this point you will be shown a new device code. Visit
www.ttcode.com
>and activate the product with this device code and product code now
>enter this code into the mio and you should find it sucessful.
>
>If you are installing this using the Navigator 5 CD's of Western Europe
>you will find you are able to install up until the point where you
>choose a voice and then the program will crash. You need to visit
>
www.tomtom.com and download the tomtom 5.21 update. Carry on the
>installation from here using the same activation guide as detailed
>above.