Thanks for the reply. Can you just make it a little simpler for the less tech savvy amongst us!
I have a 2GB microSD card at present. When I go to mass storage mode, I do not have the ability to turn it on as there is a red padlock icon by it. My tech dept said that there is an approved flash card under xkey (?) with 256 or 512mb only. They said others are not allowed because the card's data is not encrypted.
So what is it you have and where did you get it from? Did you have the red padlock also and manage to get round it?