Hello Joe1111 and welcome to the eForum.
I must say 5GB of data on a GPRS connection, within a few seconds, sounds a bit too much. That sounds as if the VMC software is not displaying your data connection correctly, either that or something has consumed your data.
Is there anyway you could take a screen shot of your Usage count on the VMC software and post it on this thread?
Thanks
Reidar
eForum Team