Petta wrote (after quoting PNL): This is my impression too. MFR_13 does not run - Buffer overrun and
possible other issues.
I defer to you and the other folks here who spend serious hours with fractal explorations and advanced use of Fractint on how how well other software does or does not match Fractint. I have personally never used Fractint as extensively as you folks have. My use of Fractint over the years has consisted of debugging, testing new features, and regression testing, mostly a long time ago. So I don't have a clear picture of what differences crept in (or didn't) to Iteratedynamics. Re some comments proposing different DOSBox settings. Yes, cycles=fixed 205170 and core=dynamic seem to help. I also realized I was trusting the execution time that shows on the tab screen. Better to run a slow fractal and time with a stopwatch. Of course under DOSBox the times Fractint reports can't be trusted.