I have been searching over the past few days help with my problem, so I was hoping I could get some help with the Pros. 
Ok, I was practicing some masking on Sony Vegas (Yes, I'm just getting into this). When I finally finished I went back and started putting some effects on some other clips, but whenever I placed placed an effect it would only appear on the right side of the screen.
For example: If I alter the coloring of a red clip and make it blue only the right side is blue and the left remained in it's original color. :|
At first I thought it was just a little editing mistake I did by accident, so I started fiddling with it hoping I could to fix it. Nothing. Then, I went and clicked on a past project and found out that this was happening to it too. It was fine before!
Now, another few days later, this stopped happening and instead of having the effect only appear on the right side of the screen it works for the most part exept for a little rectangular snibble in the middle of the screen.
Any help?
