I did solve the problem. The hard-drives that held my project were FAT32. I reformatted the drives to Mac OS Extended (it may have been journaled, I don’t recall) and that took care of it. Best of luck.
Unfortunately this only happens with the image, no text, nor any effects on the sequence. I just updated FCP 6 and re-rendered putting the sequence as DV (I already tried with 10 and 8-bit on FC6) and I’m still getting these same damn lines.