TomTom 910

Question
How can I reset or restart my TomTom GO, ONE or RIDER?
Answer
If your TomTom GO/ONE/RIDER is frozen, won't turn on or does not behave as it should it can be fixed by yourself by resetting or restarting your TomTom device.
A reset will not delete any data from your device, with exception for SMS messages on TomTom GO500/700.

1. Connect your GO/ONE/RIDER to the power charger
If you have a power charger, use it to power your TomTom GO/ONE/RIDER. If you do not have a power charger, make sure that the battery in your TomTom GO/ONE is fully charged.
Note: You need to charge your GO/ONE for at least 2 hours using the 12-24V cigarette lighter adapter.

2. Reset your GO/ONE/RIDER
To reset the unit, you simply have to push a straightened paper clip (or something similar) into the RESET hole on the device.

On TomTom GO 910/710/510 the RESET hole is located on the bottom of the device.

http://www.tomtom.com/support/solution.php?GID=1&PID=232&SID=0&CID=96&Language=1&FID=4229

Lykkedes :)
Men s**t det var svært :)