I'm not inclined to look up the Gateway model that you have, it would be more helpful if you gave us specs: CPU type and speed, memory (what does about 64 meg mean?), and so on. A 64 meg system may be pretty slow and might not be enough to bring up a GUI (particularly KDE). Follow the Documentation link near the top of this page and read the both wiki articles "Downloading FAQ" (it includes burning information) and the "Cheat Codes" section. You might try booting without a GUI or with a lower memory intensive GUI than KDE.