I read on another forum that the Sandisk Ultra II 4GB card works - will let you know.
Hmm, forgot I have the standard windows firewall, I'll give it a go. Thank you
Thanks everybody for your help. determinteed to get to the bottom of this or the device goes back and Wherigo will have to wait.
Mark
If your PC is running Windows Firewall, or any other 3rd party software fire wall products you need to configure the product to allow these programs through on the specified ports
More info here.