Please excuse my ignorance if these questions are simplistic or have been answered before. I have tried GT Legends on and off for a couple of years now and have renewed my interest in a more serious way. 1. I downloaded the 917k and it is a wonder. This is my favorite automobile ever period. I still have the Road & Track magazines covering the races it was in. Trouble is, I don't hear any engine sounds. What am I doing wrong? 2. At startup I more often than not get an error message saying that the code is not recognized. How do I get this program to start consistantly? 3. Is there a simple tutorial on setting up the active components (i.e. the gear ratios and LSD differential power on/off features)? The manual doesn't cover this at all.