I created a vignette effect in a project in CS5 by adding an inverted circle to a layer, feathering it and scaling it to slightly darken the corners of my image. Worked great!
I had added some keyframes to the Scale Width to adjust the area that was affected during camera moves. Opening it is CS6 however, some of them have newly added keyframes on the Position and the vignette has moved way over, showing the edge of the effect in the middle of the image.
I doubt there is a fix for this. So my question is: Can I reinstall CS5 in my Mac so I can continue to use this older project? I was told that they do not co-habitate very well.