I've tried hard to eliminate all bugs and to make this program as useful and user friendly as possible. But if you do find any glitches, or have improvements to suggest, please mail me at carel@eml.org . If the program crashes or behaves pathologically, it would help me if you provide as much debugging information as possible: i.e. set the debug level to one (command line or run-control file), and save the debugging information to a file. Then send that file, together with the input file that was being used when the crash happened, to me.