Thanks Kevin,
Hacking the preference file is not something I have done in AE before (I am a user since 1993). Seems pretty klugey. However, I did it and it seems to have helped. Will test some more.
Dual 3Gb Mac Pro Intel 8 Core, 5GB RAM, OS 10.4.11, FCP2, CS3
The only known solution is to add some noise to the clip to confuse the quantization or “banding” of color values. Adding a little noise breaks up solid areas enough to minimize this. Call it an “artistic” intentional effect. 😉
This system exhibits same audio symptom occassionally and we must reconnect the audio clips to solve it. The offending clips are showing a “rendered proxy” color on the problem section only, and no “color” on the correct portion of the same audio clip. After reconnecting, the entire clip shows no “color” rendering designation and plays correctly. It is almost never an entire clip that play incorrectly, just a section of the same clip that skips ahead or repeats.
Let’s see, matching/aligning two DV cameras with two crappy lenses that each introduce distortion and color aberrations? Hhhhmmm, what else can go wrong? Vertical field artifacts could be rather interesting. Good luck.
Every 10 lines? Sounds like it could it be a video playback – bad tracking issue during capture. If so, try cleaning the playback heads or capturing from another deck or camera.