David,
Here is the .zip file which now has the .par and .frm files enclosed. The only change is sf70270, which is deleted because I can not get the .par to display with @shift in fractint. All I get is a background screen without data. I do not know why, because the .gif display works ok. I put all the formulae in the .zip file just in case others have the same problem, but with different ones than you did. Let me know if it is all good.
This could be caused by having two versions of the formula (FISH0001) in two different files. I'm not exactly sure how the logic works, but if the search for the formula is finding the wrong one first, that would explain why the PAR doesn't generate the correct image. I can't explain why the GIF would find the correct formula. I would guess that there are probably two different search mechanisms. Jonathan