OK, thiis seems like a memory condition of video driver, maybe. I have a 1/3
page table in a doc of 6 pages, about 2 pages total tables; it's 103k.
Created in 2003, viewed under Win XP SP2 at 24 bit color.

Upon opening the file, two vertical bars appear at the left and right sides
of just one cell about 4" wide. They disappear after a few seconds. Does
this sound like a memory issue? It's a dinky Dell, 500 mHz, 512 RAM.