I have built a benchtop programming harness to plug my LS ecm straight into my laptop. The ecm has proper voltage, everything has power and ground as it should and the data link is hooked up properly. When I go to read the VCM, the entire process works just fine, reads to VIN, ect., until the last step, I get the "definition failed to load, unable to edit" message. I just downloaded the 3.0 update, but this is my first time using the software. Any ideas?