ok, i have adobe premiere 6.5 and it has a problem, or maybe i'm just a n00b. any video i put on the time line plays back blank, no video no sound nothing, even after rendering or saving as real video. the thing that really bugs me and makes me think i'm just a n00b is that any music that's in the right audio format for premiere plays just fine, and any pictures (jpegs) show up just fine too. so, i'ld really like to use clips, but it's not letting me. any clue what's wrong?