Had same problem with Ubuntu Dapper.
Installed dosemu_1.2.2-5_i386.deb (from Debian testing) and it seems to work properly in X window, terminal window or after text mode login.
Had to force the install because of slight version difference in libc6 between Debian testing and Ubuntu Dapper, but still seems to work.
Had same problem with Ubuntu Dapper.
Installed dosemu_ 1.2.2-5_ i386.deb (from Debian testing) and it seems to work properly in X window, terminal window or after text mode login.
Had to force the install because of slight version difference in libc6 between Debian testing and Ubuntu Dapper, but still seems to work.