Here's a quote from Blivit to some others who were having problems. His suggestions might benefit you as well:
"Do you any of our other programs installed? (updater, advantage etc?) If so, are they open and running at the same time? If yes, try closing them. Check in your task manager too to see if any other instances of any SCT programs are still running.
If not, go into device manager with your X3 plugged in. Look for anything with a yellow exclamation point next to it. Also, look for an entry labeled "jungo." There should be 2 items within that if the driver is working properly. If there are any yellow exclamation points or you do not see "jungo" or the two items that are supposed to be listed under jungo are not there then you have a driver issue. To fix that you can reinstall any of our programs for the X3(updater is the easiest) and it will reinstall the driver."
I hope one of these ideas gets you up and running.