About 3 moths ago, I tried to upgrade to V8 for BBL. I followed a writeup on Dieseplace. It all seemed to work right. I have been using 7.5 for years on two trucks (Duramax lb7 & lly) with no issues. At this point, when I plug the V2 into the computer and start V7.5, the EFILive status bar that says "Loading Calibration definition" freezes about 1/3 of the way across. If I unplug the V2, it will proceed and give me the "demo mode" warning.

Here i what I have loaded
V8
V7.5
EFILive Scan and Tune
Driver 2.8.14.0
Firmware:2.07.22
Bootloader:2.07.03

OS is Vista if it matters.

Any help would be appreciated.

Thanks