tom Tom Version 5 with IPAQ 3970

Hi

Just upgraded to TT5 from TT3 loaded maps onto a SAN Disk Ultra SD Card 512 MB, all went ok but when I plan a route it takes ages to plan and come up with the route. When I then navigate on that route if I go off the planned route as if I was lost it then tries to re-calulate but again it takes a long while to plan a new route in fact I gave up ?? which is hopeless.

Any ideas........

returned to Version 3 all ok....

Have you tried the latest update from the tomtom site?