I used IFOEDIT to open the cell/chapters as you suggested. The Preview window opened with a black screen with a title at the top of "Static." The cell would not play and remains a black screen no matter how long I leave it up.

I have a Intel P4 @ 2.66 GHZ with a Geforce FX 5200 128 mb video card updated to the newest NVidia driver.

I use a 120GB Maxtor with about 100 GB free and defragged.

I also use Power DVD5 as my player.

p.s. - Forgot to mention that I tried several cells/chapters and none previewed.