. Anyone who has seen my deep zoom viddies has noticed the occasional jerk frames. I do not know what causes this, but it seems that fractint reads the PAR file wrong and scrambles the numbers for some reason. Thus with off-parameters or coordinates the image(s) are a bit distorted or off center. Now, attempting a zoom animation of Muth FOTD 3_15_07 I have encountered this again, only the error occurs in the magnification number - the first time I have seen this! I need someone to verify that I am not hallucinating. Here are PARS for 3 images in the sequence: '''''''''''''''''''''''''''''''''''''''''''START PAR'''''''''''''''''''''''''''''''''''''''''''''''''''''''''' 782.0000 { ; reset=2004 type=formula formulafile=allinone.frm formulaname=mandelbrotbc2 passes=1 center-mag=-0.63982851388294900/+1.17265143805666000/1.35148269130032e+12 params=1.5/0/85/0 float=y maxiter=5000 inside=0 periodicity=10 } 783.0000 { ; reset=2004 type=formula formulafile=allinone.frm formulaname=mandelbrotbc2 passes=1 center-mag=-0.63982851388294900/+1.17265143805666000/1.37763961568162e+12 params=1.5/0/85/0 float=y maxiter=5000 inside=0 periodicity=10 } 784.0000 { ; reset=2004 type=formula formulafile=allinone.frm formulaname=mandelbrotbc2 passes=1 center-mag=-0.63982851388294900/+1.17265143805666000/1.40426842987625e+12 params=1.5/0/85/0 float=y maxiter=5000 inside=0 periodicity=10 } frm:MandelbrotBC2 { ; by several Fractint users e=p1, a=imag(p2)+100, p=real(p2)+PI q=2*PI*floor(p/(2*PI)), r=real(p2)-q Z=C=Pixel: Z=log(Z) IF(imag(Z) > r) Z=Z+flip(2*PI) ENDIF Z=exp(e*(Z+flip(q)))+C |Z| < a } ''''''''''''''''''''''''''''''''END PAR'''''''''''''''''''''''''''''''''''''' You clearly see the mag factors are 1.35e+12, 1.37e+12, and 1.40e+12 respectively. The first and last render correctly, but the middle one ends up with a mag factor of 6.88e11 ! Why is this and where does the number come from? It is totally reproduceable too! You dont have to render the entire image (they take awhile). Just a couple lines then hit TAB key to see the numbers. A clue might be that this only occurs in the last third of the sequence - beyond e12. There are so many messed up frames an otherwize awesome zoom is not now good for posting! Whoever solves the mystery gets a free DVD! Cheers JoTz .