I am using the Zed board, and at some time in the past I was able to successfully run the ADV7511 Zed reference design. Now when I run it, the white areas in the image are green and the black areas are purple. The monitor and cable are good. The HDMI test that runs from the Zed SD card looks good too (two black and white penguins). I'm running an old version of the design (Sept 2012). Is this color shift a known issue, or could there be a register that's not being programmed in the old design?