Well PD 9 has been a challenge for a year now and no word from support at all figured I would go here and ask if anyone has any idea why this is happening. If I play the video in the library everything is fine but when I put it in the timeline and hit play it goes black. Or try to trim it goes black. Just started doing this recently. I really wish I had just stayed with PD8 because it worked better and had so many less issues. Probably will not upgrade to PD 10 and look at another editing program.