I should have told you but I did have the truck tuned since the last time it was at the dealership. Then just one day my programmer "forgets"! Now I have a tune stuck in the computer and cant put it back to stock.

I have a U7131 Predator and I bought it brand new. I have had it for 2 years now and always ONLY programmed my truck. I go and plug it in and it tells me that my truck is not compatable with the software. It will read the last tune written but wont install a new tune which happens to be the stock ...

I also have come across this problem. My Cal ID being the same as dunejunkie. My problem is how do I update my Predator when all I have is a MAC? Is there somewhere I can go to get this done? Is there a program that is MAC compatable? What are my options since I just bought it and now I can't use it?