**System Information**
Win 7 64bit
**Blender Version**
Broken: 2.70 b66a954
Worked: (optional)
Adding translate node to a rendered layer causes bright out of gamut color bands. Also the translation effect doesn't redraw correctly, resulting in portions of the image wrapping around edges (even when wrap function is OFF).
**Exact steps for others to reproduce the error**
Create a layer with alpha, add translate node then send to mix node. Alpha seems to be included weather I want it or not. Viewer Displays large red Chunks (they change size when I change the chunk render size). Composite output has no red blocks but has bad wrap from translate node.
.blend included.{F83631}