Hi, I'm set up for international roaming but I cannot use the 3G network here in Spain (carrier is automatic and it is Movistar). I can't seem to change the carrier and I've reset my Cellular Network settings. I've tried many reboots but still I get the following. "Could not activate cellular data network: You are not subscribed to a cellular data network" The Cellular Data is the typical O2 I believe (idata.o2.co.uk). Do I need to change this? Anybody got a clue? Oh I'm from the UK - hence O2.