I'm having problems connecting to bt openzone, I'm using the same sim in my desire as I had in my old iPhone, which used to connect fine to bt openzone. When I'm in a bt openzone hotspot with WiFi on it sees it and connects, when I go to use the web it goes to a log in page, if I choose o2 it prompts me to enter my phone number, when I do and click ok, it says ' cannot complete login ' or something similar and returns to the box to enter your number. I've tried at 3 different hot spots. I can connect fine to cloud hotspots. Any ideas? O2 tech support are no help.