iso burned to disk and installed to replace xp.Install went well to reboot,after entering user name at Debian login, program would not allow any characters to be entered at password: A reinstall made no difference. Install was made via the graphical install option. Install made on older averatec with AMD Athlon XP-M 2200, 512MB DDR and 80gb HD. Four other distros crashed in midst of install. Suggestions?