Hi esxman, welcome to the eForum!
It may be, from the sound of the issue, that you don't have the latesrt version of VMC on the dongle, meaniung you have one which is fine with Vista but not with the more recent OS.
Not to worry - can you follow this link to
download the latest Vodafone Mobile Broadband software for me and give that a go? We cannot guarantee that every dongle has the latest software when purchased, but we'll always link you to the latest versions as and when they come out!
If that doesn't resolve the issue, can you start by confirming the specific model ofdongle that you're using and what exactly happens when you plug it into the USB port - do you get an error message (if so, what one?) or does nothing happen?
Also, can you confirm if you've tried different USB ports in case the issue is linked to one specific port?
The link should sort this, but if not, with a little more information we'll be able to get to the bottom of this.
DaveN
eForum Team