I just recently downloaded CS6, having upgraded my drives and adding two new video cards (Quadro 2000 and Quadro 600 for three screen display) to my computer. I had made a few trimmed projects in CS4, which I had been using previously and had backed up on a portable drive. I just tried loading a couple of the projects on my new raid drives (I also tried another drive I had loaded) and when I opened the projects, it first asked for the location of one of the files from the project and then asked for a series of rendered files. I skipped the rendered files because they didn't appear in the preview files folder. I get the yellow bar throughout the project and the projects have horrible stutters on playback. Can anyone help me with this?