I posted earlier that I might have solved my problem by reinstalling the program, but I was wrong. The problem still occurs…it is not visible when playing in the timeline. It occurs only after rendering/exporting.
The problem occurs whereever I have placed a transition/cross fade in the piece…there are green or white horizontal lines at each transition. I am exporting the videos to DVD Video TS files to burn later to DVD using Nero.
Also, I used my old Liquid 6 to do a project and had no trouble exporting, so the export problem is occuring somewhere in Avid Liquid 7.
I really appreciate if there is anyone out there that might have some idea of what I should try next. thank you.