I'm trying to help a friend here. When she plays WMV and ASF movies on her computer, the movies look like color negative. She had a bunch of video codec packages installed on her computer, so I cleaned off those first, but still no difference. She has WMP 9 installed. I compared her list of installed codecs (from Gspot) with mine, and there are some differences. Has anyone seen those negative-image movies and knows what codec might be the cause?