Frame buffer problem

[Danielhruby]

I thought that I would be able to save my renderings from a render farm in the VRay Image format so that I could load them into Vray Frame Buffer and tweak the Effects and Corrections, specifically Bloom and Glare to mask out the horrible antialiasing of luminous polygons on my light fixtures. It seems to work fine for tweaking the Effects, like Levels and Exposure, but when I try to update the bloom and glare and hit Update, I get a small corner of my image to show up and the rest of the image is black. What is going on here? Is there something I needed to do first?