I use hptuners for my gto just fine but i tried to see what i could do on my dads 2001 durango and i got everything hooked up key on, type in vin, select jtec+ it reads the file, im able to save and everything then just gives me an error after that, wont allow me to view anything with the tune.File not supported, definition failed to load. The Scanner doesnt work either, am i missing something? i know its a supported vehicle and i have the mpvi2.