Until then, I recommend that you use the work-around I suggested earlier today. As a reminder, I have an older version of perl/Tk on my web site: http://leonardo.phys.washington.edu/~ravel/misc/Tk-800.024.tar.gz http://leonardo.phys.washington.edu/%7Eravel/misc/Tk-800.024.tar.gz If you install that, Athena and Artemis should work. If you have other software that requires the very latest perl/Tk -- I apologize for the inconvenience. Thanks, Bruce. Now, my previous problems with Tk804.025_beta disappears, when I install an older version Tk-800.024. I uninstalled the latest version, and intalled the older one. Joon An