I believe the problem is the Player code in Karaoke Home Producer. It was basically the same code as Microstudio V2.0. We found so many problems with Microstudio that we totally rewrote the player code. As you know, that works fine now.
We have to now replace the KHProducer player code and release a new upgrade. We are on a very major upgrade to Karaoke Pro right now (those sales really pay our bills
), then we will attack the KHProducer player.
Read all the posts about your computer display settings, graphic cards, etc. I expect if your video is lagging the audio it is becase of:
1. You are doing a very fast lyric song, or
2. Your video card and direct-x driver are not updated
This is what we have typically diagnosed as the problem when we took the time to dig deep with a client.
With the new player code, I expect all problems to disappear.