http://www.3g.co.uk/PR/Feb2004/6646.htm
"Orange 3G network live in over 20 cities including London, Manchester, Edinburgh, Cannes, Toulouse and Lille"
so when I'm in manchester it picks up the orange 3g signal and trys to connect me to it but fails because i'm using a sim which hasnt been authorised to access the orange 3g network!