1) Are you saving the pictures manually one at a time or are you running a program to do this? 2) Have you tried any other output format i.e. *.jpg, *.tif?

Hi there, In your code, are you showing the plot every time you save it? If you do, try instead using the /BUFFER to the PLOT() function: http://www.exelisvis.com/docs/PLOT.ht... That will re-direct the plot output to an off-screen buffer instead of creating a window, so then you can use the save method without having to plot on the screen. Could that be the slowness issue? Cheers, Fernando