Thanks for the answers. Fleetwood: I opened the TDG in Notepad...........and then wondered how in the heck will I know which line is the 6984? Anyway, I scrolled down and about midway there was complete garbage for a long way down...then it changed back to normal again. Since I was at a loss as to what to do, I opened the TDG file again and looked closely at it.
Almost everything had doubled!!! So I deleted all of the duplicates and now the file works. No wonder there were so many lines.
I have no idea why this happened but am glad to learn about the notepad thing. Will continue to work on the image some more.
MANY thanks.
Lyla