I wasn't suggesting calculating every point in the fractal! Something like this wouldn't take just terrabytes! Please don't go there, this isn't what I was suggesting! What I was suggesting is that for any one image, same parameters, same formula, given that the top left and bottom right coordinates are the same (same zoom) and the resolution was the same, the image should be able to be diced up and each piece could be calculated independently. If I have to restart for whatever reason an image that is taking hours or days to complete, the values its calculating are not different than they were last time. That is kind of frustrating actually. There are several times when Fractint starts all over when it shouldn't have to. For instance the Outside= is a coloring parameter yet every time it is changed the image calculation has to start all over again. It shouldn't have to do this. The strategy should be divided up into pre-processing and post-processing, but in order to do this, the pre-processed image (that is, all the point values) can't be thrown away. Even if its that you want to see some of the cool "animations" that occur while the picture is being drawn, just redrawing the picture point by point, what I am calling "replaying", shouldn't have to calculate all the points all over again. If you do a zoom or move outside the current image, change bailout, things like that, then of course the image has to be started from scratch. There may be some argument that at least some of the points might be the same but I don't propose that kind of complexity. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.6 - Release Date: 3/30/2005 -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.8.6 - Release Date: 3/30/2005