I have just got a vodaphone dongle to go wireless, and un usage there are two coloms. 1 is 3g the other is gprs. it is telling me that all my usage is gprs usage , and the 3G is registering as 0 usage. I am a little confused. Am I connecting to a different network, thus not actually using my 3G per month allocation, or will gprs fill up before it moves to 3G?