I've just bought a Go 5200. Wifi seems to work fine. I was able to log in to MyDrive and update the operating system etc. Also downloaded a UK map which was far faster than downloading a new version of the Europe map it came with. On WiFi the traffic stuff seems OK and I can touch a red spot on the map and get further information. However if I switch off the WiFi I expect to see a GPRS connection and get traffic info that way. In fact I do very rarely see a connection but even when I do there are no traffic updates.
I've tried a reset (tom tom sounds) with WiFi turned off but no joy. I've also done a restart (had to reenter WiFi password), but wtill no joy.
Any ideas? I see that some people have had some initialisation done customer services and I've suggested this to them in an email. That was yesterday so no help yet.