X:1 not found in http://www.ibiblio.org/fiddlers/MILL_MIS.htm
pngcmd="(./ps2png 512 512 /Users/jc/w/tmp/Tune-353-MILL_MIS.ps) >>/Users/jc/w/tmp/Tune-353-get.log 2>&1" returned status 256
http://www.ibiblio.org/fiddlers/MILL_MIS.htm

Error exit status 256; here are some files to check:
[P=get.cgi V=1/1 B=0 scale=0.60 512x512 PNG]
filesizedescription
Coll_35300.log 154379 Log file, useful mostly for debugging
Form_35330.log 945 Log file, useful mostly for debugging
Form_35339.log 938 Log file, useful mostly for debugging
Form_35347.log 892 Log file, useful mostly for debugging
Form_35394.log 907 Log file, useful mostly for debugging
Form_35396.log 949 Log file, useful mostly for debugging
Site35334.log 194 Log file, useful mostly for debugging
Tune-353-MILL_MIS.abc 0 ABC music file with the extracted tune(s)
Tune-353-MILL_MIS.ps 6 PostScript
Tune-353-MILL_MIS.txt 0 Plain-text file with the extracted tune(s)
Tune-353-get.log 19729 Log file, useful mostly for debugging
Tune-35314-get.log 349653 Log file, useful mostly for debugging
Tune-35333-get.log 6545 Log file, useful mostly for debugging
Tune-35341-Reel_Contra70.abc 679 ABC music file with the extracted tune(s)
Tune-35341-Reel_Contra70.txt 679 Plain-text file with the extracted tune(s)
Tune-35341-get.log 4994 Log file, useful mostly for debugging
Tune-35351-get.log 4921 Log file, useful mostly for debugging
Tune-35385-get.log 1382 Log file, useful mostly for debugging
Tune-35388-get.log 5030 Log file, useful mostly for debugging
These files should be available for 24 hours.