Freescan troubles

After i download free scan and i use the scroll down menu to select 1994 Camaro Z28 it says "Cannot find specified file" what gives? its also not reading anything even though it is plugged into the car, even after hitting Interact button.

tried downloading it again and it still "cannot find specified file". wtf.

It's the conection, i have that same problem once and a while when i use the usb conector.