Cannot find satellites sometimes

When was the last time you updated the QuickFix of your TomTom? It helps your GPS to find the satellites.
Please, do the following:
1) Install "TomTom Home" software in your computer from www.tomtom.com
2) Start TomTom Home in your computer
3) Plug in the GPS dock to your computer's USB port and place the GPS on the dock. The green light on the bottom right of the GPS should turn ON to indicate that the GPS is getting power from the dock and charging
4) Start your GPS while being in the dock. If the GPS asks "do you want to connect to computer" answer "YES"
5) The TomTom Home software will detect the GPS and check if there are any updates for it. Then you'll be offered updates to install. Some are free, some are not. Be sure you choose to update "QuickFix".
Please, report back if you need further assistance
My ID: alexocuello_

All gps units do not do well trying to find a satellite on the move. You should let your unit locate satellites before you start moving.

here are some tips on what to do ,To pinpoint your location, you need to get signals from at least 4 satellites. If you receive signals from less than 4 satellites or the signals are not strong enough, the Driving View stays grey and one of the following messages is shown in the bottom right corner of the Driving View:

• Waiting for a valid GPS signal
• The GPS signal was lost sec ago

Note: In previous versions of the TomTom application the message may vary.
If you see any of these messages, try the following:

Finding a GPS signal
In the following cases it can take up to 5 minutes to find your current position:

• You use your TomTom device for the first time.
• You haven't used your TomTom device for a longer time.
• Your TomTom device has been relocated without using it (e.g. after travelling by plane or train).

If it takes longer than 5 minutes, make sure that you are in an open place without tall buildings or trees around you.
Once your TomTom device has located your current position, the Driving View is shown in full colour and shows your position on the map.
Tip: Most TomTom devices can use QuickGPSfix™ to locate your current position faster. Flight mode
On devices with built-in GPRS connectivity, flight mode also disables your device’s GPS reception.
To switch flight mode off, tap Flight mode in the preferences menu and then select Restore connections.
Clear View
Your TomTom device must be outdoors to locate your current position.
Try repositioning your device in your car; ideally, try to position it at the lowest possible point directly on the windscreen.
Some vehicles have a heat reflective shield embedded in the windscreen, which may prevent your device from locating your current position. If this is the case in your vehicle, use the TomTom External Antenna Kit (available as an accessory).
Tip: As a reference, place your device outside your parked car to see if it can find your current position.
Reset your device
Reset your TomTom device. Click here to learn how to reset your device.
Install the latest application
We recommend always having the latest version of our application installed on your device.

try updating with the latest GPSfix updates from the tomtom home software

try updating with the latest GPSfix updates via the tomtom home software

Have you hooked your GPS to an internet connected computer lately?

The TomTom home software that comes with the GPS will update so that it knows were the satalites are for the next week. It will also update the software to the latest verson.

You could also try inserting the end of a paperclip in the reset hole on the bottom of the GPS unit.

If all this fails contact TomTom. I have found them very helpfull.

Try resetting your device. Depending on the model you have, this is done by either using the pin or holding down the power button for about 15 - 30 seconds. You'll know the reset has been successful when the legal agreement come up when it comes back on. Once this is done, go outside and on the device, go to the satellite detail screen and wait until several (about 4) of the bars are 75% or higher (they should change colors). You should go the the regular screen after that and you should be able to navigate again.

If you are talking about recent destinations, you can only delete all or nothing...

BUT, if you use Poiedit, (www.poiedit.com)
you can open mapsettings.cfg on you unit and delete destinations, and resave file...

i have no gps reception

You've done the hard (full) reset aswell?
Is it still under warranty? I've seen a few odd problems like these with tomtoms.