okay, so Pro Tools must not be the problem. The clips I have are uncompressed. I think one of them is compressed about 2%. I have some .avi some .mov, and some .mpg clips and none of them work. The problem is with the codecs. I’ve unistalled and reinstalled Production Premium CS4 twice now, and the Adobe codecs still show up as broken on Sherlock. Is there another place to find and download the h.264 and MPEG codecs?