I was in the process of switching from one tune to another when something went wrong with the install. I am getting an error message stating that I must install the stock tune, but when I try loading the tune on my nGuage that I believe is the stock tune, it won't install, nor will any other tune install. As it stands now, my truck won't start!!!! Any advice? I disconnecting the battery for ten minutes, but that did nothing. Please help!!!!