MAGIX COMMUNITY: Please Help!

Whether in sound forge or vegas playback, I get these annoying trailing lines. They don't seem to affect anything as far as quality of the project, but I can't seem to stop them from trailing. Please advise. I never got them on my old slow PC. I got a new faster PC and I'm experiencing this issue. I've included a picture of what it looks like from another user who experienced the same thing back in 2020, but he/she never posted a solution.

-Jimmy James