Just built new computer with AMD Athlon XP 2600+Barton on Asus A7N8X-X-UAY motherboard, 512 MB of RAM, and an 80 GB HD. Want to have a dual boot system so I first installed W98. No problems. Used FIPS to shrink windows and created a new partition for Linux. All went well. Downloaded Fedora Core 1 (Yarrow x86_64) ISO and burned onto CD. Booted from CD to install Fedora and got message, "Your CPU does not support long mode. Use a 32 bit distribution." Install will not move forward. Should I install i386? Please help.