I just tried to download a stock tune from a 04 LB7 and it locks up at reading 12k of 512k. It did this 3 or 4 times in a row. The last time I tried it, it got to 40k and locked up. The software and cable works on my 02 with no problems. It seems to be related to something in the truck rebooting. A chime is heard and the dash resets itself and then the software stops downloading. Has anyone experienced this and what is the fix?