Due to my Dell streak being stolen from my coat pocket on a train between Barcelona and Barcelona Airport I have had tp purchase a replacement Dell Streak. Although both have been purchased direct from Dell and should therefore be unlocked, whilst I was able to use my Orange Mobile Internet SIM Card from the Dongle in the first one my replacement Dell Streak refuses to recognise the SIM card (which is a replacement as the original was in the first Dell Streak when it was stolen but is functioning when in the Dongle)

Any thoughts. Has something gone wrong with the 2.2 update or are some Dell Streaks being shipped out locked to O2 in error. If it has accidentally come out locked to O2 what are the signs.?

Alun