I have a V2, Win 7, the latest versions of the software, and recent firmware. Anytime I try to read or flash in 7.5 the software stops responding, and i have to close it and unplug it then restart 7.5. This is happening with any of the duramax ecms I try. I can tune and save in 7.5 but Im having to use v8 to flash and read. any suggestions?
Nathan