I have used Pinnacle Studio 12 for 2 years and suddenly one day the audio quit working. I mean when I am making the movie there is no sound at all even tho the sound tracks are there and when the video has finished rendering there is sound on the finished product. I have checked every mute button I could find on there and nothing seems to work. Re-installed it but still no luck. I finally went out and bought sony vegas and have been happy with it but I still like pinnacles scorefitter for music. Any ideas?