Drag those files to the trash again, drag the Eudora application folder to the trash, drag the Eudora folder from the Documents folder to the desktop. Don't trash that. Reboot, then reinstall Eudora and see if you can set it up and use it. I have been using Eudora for years, 6.0 now, and can't duplicate your problem. My thoughts are that you may have a bad font.