I downloaded the source code for avisynth 1.0b6 because I wanted to debug a crash (an access violation in avisynth). After I built it, I discovered that the colors had gotten totally messed up in all my scripts. (Everything was green and magenta, almost like looking at a color negative.)

It gets worse, though. I figured something had gone wrong when I built avisynth, so I deleted it and reinstalled the 1.0b6 distribution dll. The problem remained! I even removed this one and installed older version--colors still messed up.

Anyone have any ideas what might be going on? Registry settings messed up? Right now, I can't use avisynth at all.